To change a step

Example To change cos60 to sin60

To delete a step

Example To change to 369 2

In the insert mode, the

key operates as a backspace key.

To insert a step

Example To change 2.362 to sin2.362

Using Replay Memory

The last calculation performed is always stored into replay memory. You can recall the contents of the replay memory by pressing or. If you press , the calculation appears with the cursor at the beginning. Pressing causes the calculation to appear with the cursor at the end. You can make changes in the calculation as you wish and then execute it again. Replay memory is enabled in the Linear input/output mode only. In the Math input/output mode, the history function is used in place of replay memory. For details, see History Function (page 1-17). Example 1 To perform the following two calculations 4.12 6.4 = 26.368 4.12 7.1 = 29.252
After you press , you can press or to recall previous calculations, in sequence from the newest to the oldest (Multi-Replay Function). Once you recall a calculation, you can use and to move the cursor around the calculation and make changes in it to create a new calculation. Example 2
(One calculation back) (Two calculations back) A calculation remains stored in replay memory until you perform another calculation. The contents of replay memory are not cleared when you press the key. recall a calculation and execute it even after pressing the key, so you can
Making Corrections in the Original Calculation
Example 2.3 entered by mistake for 2.3
Cursor is positioned automatically at the location of the cause of the error.
Make necessary changes. Execute again.
Using the Clipboard for Copy and Paste
You can copy (or cut) a function, command, or other input to the clipboard, and then paste the clipboard contents at another location. The procedures described here all use the Linear input/output mode. For details about the copy and paste operation while the Math input/output mode is selected, see Using the Clipboard for Copy and Paste in the Math Input/Output Mode (page 1-18).
To specify the copy range
1. Move the cursor (I) to the beginning or end of the range of text you want to copy and then press (CLIP). This changes the cursor to .
2. Use the cursor keys to move the cursor and highlight the range of text you want to copy.
3. Press (COPY) to copy the highlighted text to the clipboard, and exit the copy range specification mode.
The selected characters are not changed when you copy them.
To cancel text highlighting without performing a copy operation, press

To cut the text

1. Move the cursor (I) to the beginning or end of the range of text you want to cut and then press (CLIP). This changes the cursor to .

Important! On a model whose operating system has been updated to OS 2.00 from an older OS version, Math input/output mode input and result display are not supported in any mode except the RUN MAT mode and e ACT mode.
Math Input/Output Mode Input in the GRAPH Mode
You can use the Math input/output mode for graph expression input in the GRAPH, DYNA, TABLE, and RECUR modes. Example 1
x x In the GRAPH mode, input the function y = 1 and then graph it. ' ' Make sure that initial default settings are configured on the View Window.

GRAPH ( )

(DRAW)
x 1 In the GRAPH mode, input the function y = x x 1 dx and then 2 graph it. Make sure that initial default settings are configured on the View Window.

(CALC)

Math Input/Output Mode Input and Result Display in the EQUA Mode
You can use the Math input/output mode in the EQUA mode for input and display as shown below. In the case of simultaneous equations ( (SIML)) and high-order equations ( (POLY)), solutions are output in natural display format (fractions, , are displayed in natural format) whenever possible. In the case of Solver ( (SOLV)), you can use Math input/output mode natural input.

Example

To solve the quadratic equation x2 + 3x + 5 = 0 in the EQUA mode EQUA (a+bi) (POLY) (2) (SET UP) (Complex Mode)

5. Option (OPTN) Menu

The option menu gives you access to scientific functions and features that are not marked on the calculators keyboard. The contents of the option menu differ according to the mode you are in when you press the key. The option menu does not appear if you press while binary, octal, decimal, or hexadecimal is set as the default number system. For details about the commands included on the option (OPTN) menu, see the item in the PRGM Mode Command List (page 8-37). key
The meanings of the option menu items are described in the sections that cover each mode. The following list shows the option menu that is displayed when the RUN MAT (or RUN) or PRGM mode is selected. Item names below that are marked with an asterisk (*) are not included on the fx-7400G. {LIST}. {list function menu} {MAT}*. {matrix operation menu} {CPLX}. {complex number calculation menu} {CALC}. {functional analysis menu} {STAT}. {paired-variable statistical estimated value menu} (fx-7400G ) {menu for paired-variable statistical estimated value, distribution, standard deviation, variance, and test functions} (all models except fx-7400G ) {CONV}. {metric conversion menu} {HYP}. {hyperbolic calculation menu} {PROB}. {probability/distribution calculation menu} {NUM}. {numeric calculation menu} {ANGL}. {menu for angle/coordinate conversion, sexagesimal input/conversion} {ESYM}. {engineering symbol menu} {PICT}. {graph save/recall menu} {FMEM}. {function memory menu} {LOGIC}. {logic operator menu} {CAPT}. {screen capture menu} {TVM}*. {financial calculation menu} The PICT, FMEM and CAPT items are not displayed when Math is selected for the Input/ Output mode setting on the Setup screen.

Permutation and Combination
Permutation n! nPr = (n r)! Be sure to specify Comp for Mode in the Setup screen. Example 1 To calculate the possible number of different arrangements using 4 items selected from among 10 items Formula
Combination n! nCr = r! (n r)!
Operation 10 ( ) (PROB)* (nPr) 4 (PROB)

P4 = 5040

* fx-7400GII: Example 2
To calculate the possible number of different combinations of 4 items that can be selected from among 10 items Formula Operation 10 ( ) (PROB)* (nCr) 4 (PROB)

C4 = 210

Greatest Common Divisor (GCD), Least Common Multiple (LCM)
Example To determine the greatest common divisor of 28 and 35 (GCD (28, 35) = 7) To determine the least common multiple of 9 and 15 (LCM (9, 15) = 45) ( ) 35 ( ) (NUM)* ( ) (LCM) Operation (NUM)* ( ) (GCD) 28
Division Remainder (MOD), Remainder of Exponential Division (MOD Exp)
Example To determine the remainder when 137 is divided by 7 (MOD (137, 7) = 4) To determine the remainder when 53 is divided by 3 (MOD E (5, 3, 3) = 2) 5 ( ) Operation (NUM)* ( ) (MOD) 137 7

( ) 3 3

(NUM)*

(MOD E)

Fractions
In the Math input/output mode, the fraction input method is different from that described below. For fraction input operations in the Math input/output mode, see page 1-11. Be sure to specify Comp for Mode in the Setup screen. Example 73 + 3 = 20 = 3.65 (Conversion to decimal)*1 + = 6.2 0.5 = 0.25**1 Operation 4

2578 2.5

*1 Fractions can be converted to decimal values and vice versa. *2 When the total number of characters, including integer, numerator, denominator and delimiter marks exceeds 10, the fraction is automatically displayed in decimal format. *3 Calculations containing both fractions and decimals are calculated in decimal format. Pressing the ( improper fraction format. ) key toggles the display fraction between mixed fraction and
Engineering Notation Calculations
Input engineering symbols using the engineering notation menu. Be sure to specify Comp for Mode in the Setup screen. Example 999k (kilo) + 25k (kilo) = 1.024M (mega) = 0.9 = 900m (milli) = 0.(SET UP) (ESYM)* ( ) 10 ( ) ( ) (ESYM)* ( ) ( ) (ENG)*1 (k) Operation (Eng) (k) ( ) ( )

Axes: Off (Label: Off Grid: Off) This setting clears the axis lines from the display.
Label: On (Axes: On Grid: Off) This setting displays labels for the x- and y-axes.

Graph Memory

Graph memory lets you store up to 20 sets of graph function data and recall it later when you need it. A single save operation saves the following data in graph memory. All graph functions in the currently displayed Graph relation list (up to 20) Graph types Function graph line information Draw/non-draw status V-Window settings (1 set)
To store graph functions in graph memory
1. Press (GMEM) (STO) to display the pop-up window. 2. Press a number key to specify the Graph memory where you want to save the graph function, and then press. Pressing stores the graph function to Graph Memory 1 (G-Mem1). There are 20 graph memories numbered G-Mem1 to G-Mem20. Storing a function in a memory area that already contains a function replaces the existing function with the new one. If the data exceeds the calculators remaining memory capacity, an error occurs.
To recall a graph function
1. Press (GMEM) (RCL) to display the pop-up window. 2. Press a number key to specify the Graph memory for the function you want to recall, and then press. Pressing recalls the graph function in Graph Memory 1 (G-Mem1). Recalling data from graph memory causes any data currently on the Graph relation list to be deleted.
4. Storing a Graph in Picture Memory
You can save up to 20 graphic images in picture memory for later recall. You can overdraw the graph on the screen with another graph stored in picture memory.
To store a graph in picture memory
1. After graphing in GRAPH mode, press window. (PICT) (STO) to display the pop-up
2. Press a number key to specify the Picture memory where you want to save the picture, and then press. Pressing stores the picture function to Picture Memory 1 (Pict 1). There are 20 picture memories numbered Pict 1 to Pict 20. Storing a graphic image in a memory area that already contains a graphic image replaces the existing graphic image with the new one. A dual graph screen or any other type of graph that uses a split screen cannot be saved in picture memory. 5-10

To recall a stored graph

1. After graphing in GRAPH mode, press window. (PICT) (RCL) to display the pop-up
2. Press a number key to specify the Picture memory for the picture you want to recall, and then press. Pressing recalls the picture function in Picture Memory 1 (Pict 1). Recalling picture memory contents causes the currently displayed graph to be overwritten. Use the sketch Cls function (page 5-28) to clear a graph that was recalled from picture memory.

Coordinate Rounding

This function rounds off coordinate values displayed by Trace. 1. From the Main Menu, enter the GRAPH mode. 2. Draw the graph. 3. Press (ZOOM) ( ) (RND). This causes the V-Window settings to be changed automatically in accordance with the Rnd value. 4. Press (TRCE), and then use the cursor keys to move the pointer along the graph. The coordinates that now appear are rounded.

Calculating the Root

This feature provides a number of different methods for analyzing graphs. 1. From the Main Menu, enter the GRAPH mode. 2. Draw the graphs. 3. Select the analysis function. (G-SLV) (ROOT). Calculation of root (MAX). Local maximum value (MIN). Local minimum value 5-30
(Y-ICPT). y-intercept (ISCT). Intersection of two graphs ( ) ( ) ( ) (Y-CAL). y-coordinate for given x-coordinate (X-CAL). x-coordinate for given y-coordinate ( dx). Integral value for a given range
4. When there are multiple graphs on the screen, the selection cursor ( ) is located at the lowest numbered graph. Press and to move the cursor to the graph you want to select. 5. Press to select the graph where the cursor is located and display the value produced by the analysis. When an analysis produces multiple values, press Pressing returns to the previous value. to calculate the next value.
Either of the following can cause poor accuracy or even make it impossible to obtain solutions. - When the graph of the solution obtained is a point of tangency with the x-axis - When a solution is an inflection point
Calculating the Point of Intersection of Two Graphs
Use the following procedure to calculate the point of intersection of two graphs. 1. Draw the graphs. 2. Press (G-SLV) (ISCT). When there are three or more graphs, the selection cursor ( ) appears at the lowest numbered graph. 3. Press 4. Press 5. Press 6. Press and and to move the cursor to the graph you want to select. to. to move the cursor to the second graph. to calculate the next value. to select the first graph, which changes the shape of the cursor from to calculate the point of intersection for the two graphs.
When an analysis produces multiple values, press Pressing returns to the previous value. Example
Graph the two functions shown below, and determine the point of intersection between Y1 and Y2. Y1 = x + 1, Y2 = x2

(Z). Z Tests (page 6-24) (t). t Tests (page 6-26) (CHI).

Test (page 6-29)

(F). 2-Sample F Test (page 6-30) (ANOV). ANOVA (page 6-31) 6-23
After setting all the parameters, use to move the highlighting to Execute and then press one of the function keys shown below to perform the calculation or draw the graph. (CALC). Performs the calculation. (DRAW). Draws the graph.
V-Window settings are automatically optimized for drawing the graph.

Z Tests

Z Test Common Functions
You can use the following graph analysis functions after drawing a Z Test result output graph. (Z). Displays z score.
Pressing (Z) displays the z score at the bottom of the display, and displays the pointer at the corresponding location in the graph (unless the location is off the graph screen). Two points are displayed in the case of a two-tail test. Use Pressing (P). Displays p-value. (P) displays the p-value at the bottom of the display without displaying the pointer. and to move the pointer.
Executing an analysis function automatically stores the z and p values in alpha variables Z and P, respectively.

1-Sample Z Test

This test is used when the population standard deviation is known to test the hypothesis. The 1-Sample Z Test is applied to the normal distribution. Perform the following key operations from the statistical data list. (TEST) (Z) (1-S)
The following shows the parameter data specification items that are different from list data specification.
Calculation Result Output Example
11.4.. direction of test sx. Displayed only for Data: List setting. 6-24
[Save Res] does not save the

condition in line 2.

2-Sample Z Test
This test is used when the standard deviations for two populations are known to test the hypothesis. The 2-Sample Z Test is applied to the normal distribution. Perform the following key operations from the statistical data list. (TEST) (Z) (2-S)

. direction of test

sx1. Displayed only for Data: List setting. sx2. Displayed only for Data: List setting. [Save Res] does not save the

1-Prop Z Test

This test is used to test for an unknown proportion of successes. The 1-Prop Z Test is applied to the normal distribution. Perform the following key operations from the statistical data list. (TEST) (Z) (1-P)
Prop 0.5. direction of test [Save Res] does not save the Prop condition in line 2.

2-Prop Z Test

This test is used to compare the proportion of successes. The 2-Prop Z Test is applied to the normal distribution. Perform the following key operation from the statistical data list. (TEST) (Z) (2-P)
p1>p2. direction of test
[Save Res] does not save the p1 condition in line 2.

t Tests

t Test Common Functions
You can use the following graph analysis functions after drawing a t Test result output graph. (T). Displays t score.

n. installments I%. interest rate PV. principal
.. payment for each installment
FV. balance following final installment P/Y. installments per year C/Y. compoundings per year
After configuring the parameters, use one of the function menus noted below to perform the corresponding calculation. {BAL} {balance of principal after installment PM2} {INT} {interest portion of installment PM1} {PRN} {principal portion of installment PM1} 7-8
{ INT} {total interest paid from installment PM1 to installment PM2} { PRN} {total principal paid from installment PM1 to installment PM2} {CMPD} {compound interest screen}
An error (Ma ERROR) occurs if parameters are not configured correctly. Use the following function menus to maneuver between calculation result screens. {REPT} {parameter input screen} {CMPD} {compound interest screen} {GRPH} {draws graph}
After drawing a graph, you can press results along the graph. The first press of (TRCE) displays and PRN when n = 2, n = 3, and so on. Press
(TRCE) to turn on trace and read calculation and PRN when n = 1. Each press of shows
6. Interest Rate Conversion
The procedures in this section describe how to convert between the annual percentage rate and effective interest rate.

EFF = 1 +

APR : annual percentage rate (%) EFF : effective interest rate (%) n : number of compoundings

EFF APR = 1 + 100

Press (CNVT) from the Financial 1 screen to display the following input screen for interest rate conversion. (CNVT)
n. number of compoundings I%. interest rate
After configuring the parameters, use one of the function menus noted below to perform the corresponding calculation. { EFF} {converts annual percentage rate to effective interest rate} { APR} {converts effective interest rate to annual percent rate}
An error (Ma ERROR) occurs if parameters are not configured correctly. Use the following function menu to maneuver between calculation result screens. {REPT} {parameter input screen}
7. Cost, Selling Price, Margin
Cost, selling price, or margin can be calculated by inputting the other two values.

Normal Distribution

NormPD(: Returns the normal probability density (p value) for the specified data. Syntax: NormPD(x[, , )] A single value or a list can be specified for x. Calculation result p is assigned to variables p and Ans (ListAns when x is a list). NormCD(: Returns the normal cumulative distribution (p value) for the specified data. Syntax: NormCD(Lower, Upper[, , )] Single values or lists can be specified for Lower and Upper. Calculation results p, ZLow, and ZUp are assigned respectively to variables p, ZLow, and ZUp. Calculation result p also is assigned to Ans (ListAns when Lower and Upper are lists). InvNormCD(: Returns the inverse normal cumulative distribution (lower and/or upper value(s)) for the specified p value. Syntax: InvNormCD(["L(or 1) or R(or 1) or C(or 0)", ]p[, , ])
tail (Left, Right, Central)
A single value or a list can be specified for p. Calculation results are output in accordance with the tail setting as described below. tail = Left The Upper value is assigned to variables x1InvN and Ans (ListAns when p is a list). tail = Right The Lower value is assigned to variables x1InvN and Ans (ListAns when p is a list). tail = Central The Lower and Upper values are assigned respectively to variables x1InvN and x2InvN. Lower only is assigned to Ans (ListAns when p is a list).

Student- t Distribution

tPD(: Returns the Student-t probability density (p value) for the specified data. Syntax: tPD(x, df [)] A single value or a list can be specified for x. Calculation result p is assigned to variables p and Ans (ListAns when x is a list). tCD(: Returns the Student-t cumulative distribution (p value) for the specified data. Syntax: tCD(Lower,Upper,df [)] Single values or lists can be specified for Lower and Upper. Calculation results p, tLow, and tUp are assigned respectively to variables p, tLow, and tUp. Calculation result p also is assigned to Ans (ListAns when Lower and Upper are lists). InvTCD(: Returns the inverse Student-t cumulative distribution (Lower value) for the specified p value. Syntax: InvTCD(p,df [)] A single value or a list can be specified for p. The Lower value is assigned to the xInv and Ans variables (ListAns when p is a list).
ChiPD(: Returns the Syntax: ChiPD(x,df [)]

1. Using the System Manager
From the Main Menu, enter the SYSTEM mode and display the following menu items. ( ( ). {display contrast adjustment} ). {Auto Power Off time setting}
(LANG). {system language} (VER). {version} (RSET). {system reset operations}

2. System Settings

While the initial SYSTEM mode screen is displayed, press Adjustment screen. The The cursor key makes display contrast darker. cursor key makes display contrast lighter. ( ) to display the Contrast
(INIT) returns display contrast to its initial default. or (QUIT) to return to the initial SYSTEM mode screen. and then or
You can adjust contrast while any screen is on the display by pressing. To exit contrast adjustment, press again.
Power Properties Settings
To specify the Auto Power Off trigger time
While the initial SYSTEM mode screen is displayed, press Properties setting screen. ( ) to display the Power
Models equipped with a backlight (10). {10 minutes} (initial default setting) (60). {60 minutes} or
Models not equipped with a backlight
(QUIT) to return to the initial SYSTEM mode screen. 12-1
To specify the backlight key (for models equipped with a backlight only)
1. While the initial SYSTEM mode screen is displayed, press Properties setting screen. 2. Use and to select Backlight Setting. (LIGHT)} (LIGHT). {Backlight on/off: (ANY). {Backlight on: Any key} or (QUIT) to return to the initial SYSTEM mode screen. ( ) to display the Power
To specify the backlight duration (for models equipped with a backlight only)
1. On the initial SYSTEM mode screen, press screen. 2. Use and to select Backlight Duration. ( ) to display the Power Properties setting
(10). {turns off the backlight 10 seconds after the last key operation is performed} (30). {turns off the backlight 30 seconds after the last key operation is performed} (initial default setting) (Always). {leaves the backlight turned on until the backlight key is pressed or until the calculator is turned off} or (QUIT) to return to the initial SYSTEM mode screen.

System Language Setting

Use LANG to specify the display language for built-in applications.
To select the message language
1. From the initial SYSTEM mode screen, press selection screen. 2. Use the and (LANG) to display the Message Language (SEL).
cursor keys to select the language you want, and then press

This displays a screen for specifying the data selection method. {SEL}. {selects new data} {CRNT}. {automatically selects previously selected data*1}
*1 The previously selected data memory is cleared whenever you change to another mode.
To send selected data items (Example: To send user data)
Press (SEL) or (CRNT) to display a data item selection screen.
{SEL}. {selects data item where cursor is located} {ALL}. {selects all data} {TRAN}. {sends selected data items}
Use the and cursor keys to move the cursor to the data item you want to select and press (SEL) to select it. Currently selected data items are marked with . Pressing (TRAN) sends all the selected data items. To deselect a data item, move the cursor to it and press 13-3 (SEL) again.
Only items that contain data appear on the data item selection screen. If there are too many data items to fit on a single screen, the list scrolls when you move the cursor to the bottom line of the items on the screen.
To execute a send operation
After selecting the data items to send, press you want to execute the send operation. (Yes). sends data (No). returns to data selection screen (TRAN). A message appears to confirm that

(Yes) to send the data.

You can interrupt a data operation at any time by pressing
The following shows what the displays of the sending and receiving units look like after the data communication operation is complete. Sending Unit Receiving Unit
to return to the data communication main menu.
Configuring the Receivers Wakeup Feature
When Wakeup is turned on the receiver, the receiver turns on automatically when data transfer starts. fx-7400GII The receiver enters the receive mode automatically after it wakes up. All models except fx-7400GII When communicating between two calculators (3PIN selected as the cable type), the receiver enters the receive mode automatically after it wakes up. When communication is with a computer (USB selected as the cable type), connecting the USB cable to a computer and then to the calculator (while the calculator is turned off) will cause the calculator to turn on and the Select Connection Mode dialog box to appear. 13-4
1. On the receivers data communication main menu, press (WAKE). This displays the Wakeup setting screen. {On}. {turns Wakeup on} {Off}. {turns Wakeup off} 2. Press (On). This turns on Wakeup and returns of the data communication main menu. 3. Turn off the receiver. 4. Connect the receiver to the sender. 5. Starting a send operation on the sender causes the receiver to turn on automatically and performs the data transfer operation.

If you are configuring a new custom probe:
Perform steps 1 through 6 of the procedure under To configure a custom probe setup on page 4-1. Auto calibrate will automatically set the slope and intercept, so you do not need to specify them in step 6 of the above procedure.
If you are editing the configuration of an existing custom probe:
Perform steps 1 through 3 of the procedure under To edit a custom probe setup on page 4-6. 3. Press 2(CALIB). This will start the first sampling operation with the sensor connected to EA-200s CH1, and then display a screen like the one shown below.
First sampling operation Real-time display of sampled values

4-4 Using a Custom Probe

4. After the sampled value stabilizes, hold down w for a few seconds. This will register the first sampled value and display it on the screen. At this time the cursor will appear at the bottom of the display, ready for input of a reference value.
5. Use the key pad to input the reference value for the first sampled value, and then press w. This cause sampling of the second value to be performed automatically, and display the same type of screen that appeared in step 3.
Second sampling operation
6. After the sampled value stabilizes, hold down w for a few seconds. This will register the second sampled value and display it on the screen. The cursor will appear at the bottom of the display, ready for input of a reference value.
7. Use the key pad to input the reference value for the second sampled value, and then press w. This will return to the custom probe setup screen. The E-CON2 will calculate the slope and intercept value based on the two reference values that you input, and configure the settings automatically. The automatically configured values will appear on the custom probe setup screen, where you can view them.

4-5 Using a Custom Probe

8. Press w, and then input a memory number from 1 to 99. This saves the custom probe setup and returns to the custom probe list.
k Zero Adjusting a Custom Probe
This procedure zero adjusts a custom probe and sets its intercept value based on an actual sample using the applicable custom probe. u To zero adjust a custom probe 1. Connect the calculator and EA-200, and connect the custom probe you want to zero adjust to CH1 of the EA-200. 2. What you should do first depends on whether you are configuring a new custom probe for zero adjusting, or editing the configuration of an existing custom probe.

2. Input the function you want to graph. To input a function, use the f and c cursor keys to move the highlighting to the line where you want to input it, and then use the calculator keys for input. Press w to store the function. 3. On the graph function list, specify which functions you want to graph. Graphing is turned on for any function whose = symbol is highlighted. To toggle graphing of a function on or off, use the f and c cursor keys to move the highlighting to the function, and then press 1(SEL).
11-10 Graph Analysis Tool Graph Screen Operations
4. After the graph function list settings are configured the way you want, press 6(DRAW). This overlays graphs of all the functions for which graphing is turned on, over the graph that was originally on the graph screen.
Original Graph Overlaid with Y=f(x) Graph
To delete the overlaid graph, press !4(SKTCH) and then 1(Cls). Important! The screenshot shown in step 4 above is of a function that was calculated and stored by performing regression on a graph that was drawn using sampled data. Note that overlaying a Y=f(x) graph on a sampled data graph does not automatically draw a regression graph based on sampled data.
k Working with Multiple Graphs
The procedures in this section explain how you can zoom or move a particular graph when there are multiple graphs on the display. u To zoom a particular graph on a multi-graph display 1. When the graph screen contains multiple graphs, press K, and then 3(EDIT). The [EDIT] menu appears at the bottom of the display.
2. Press 1(ZOOM). This displays only one of the graphs that were originally on the graph screen.
11-11 Graph Analysis Tool Graph Screen Operations
3. Use the f and c cursor keys to cycle through the graphs until the one you want is displayed, and then press w. This enters the zoom mode and causes all of the graphs to reappear, along with a magnifying glass cursor ( ) in the center of the screen.
4. Use the cursor keys to move the magnifying glass cursor to the location on the screen that you want at the center of the enlarged or reduced screen. 5. Press w. This causes the magnifying glass to disappear and enters the zoom mode. The cursor keys perform the following operations in the zoom mode. To do this: Enlarge the graph image horizontally Reduce the size of the graph image horizontally Enlarge the graph image vertically Reduce the size of the graph image vertically Press this cursor key: e d f c
6. To exit the zoom mode, press J.
11-12 Graph Analysis Tool Graph Screen Operations

4(UNIT)

5(CHNG)
To exit the View Window function key menu and return to the standard function key menu, press J.
12-1 Calling E-CON2 Functions from an eActivity
12 Calling E-CON2 Functions from an eActivity
You can call E-CON2 functions from an eActivity by including an Econ strip in the eActivity file. The following describes each of the four available Econ strips. u Econ SetupWizard strip This strip calls the E-CON2 Setup Wizard. The Econ Setup Wizard strip makes it possible to perform the following series of operations from the eActivity: EA-200 setup using the Setup Wizard R Sampling R Graphing. u Econ AdvancedSetup strip This strip calls the E-CON2 Advanced Setup screen. The Advanced Setup provides access to almost all executable functions (except for the program converter), including detailed EA-200 setup and sampling execution; graphing and Graph Analysis Tools; simultaneous sampling with multiple sensors using the MULTIMETER Mode, etc. u Econ Sampling strip This strip records on set of EA-200 setup information configured using Advanced Setup, and performs sampling. Once setup information is recorded to this type of strip, sampling starts immediately based on the recorded setup information the next time the strip is executed. u Econ Graph strip This strip graphs sampled data that is recorded in the strip. The sampled data is recorded to the strip the first time the strip is executed. This section explains how to insert each type of Econ strip into an eActivity file, and how to use inserted Econ strips. For details about eActivity operations, see Chapter 10 eActivity in the manual that comes with the fx-9860G SD or fx-9860G.
12-2 Calling E-CON2 Functions from an eActivity
k Inserting an Econ Strip into an eActivity File
The following procedure assumes that the eActivity file into which you want to insert the Econ strip is already open. For information about creating a new file and other basic eActivity operations, see Basic eActivity File Operation (page 10-1-5) in the manual that comes with the fx-9860G SD or fx-9860G. u To insert an Econ Strip into an eActivity file 1. On the eActivity workspace screen, move the cursor the location where you want to insert the Econ strip. 2. Press 2(STRP). This will display a dialog box with a list of insertable strips.
3. Use f and c to move the highlighting to the type of Econ strip you want to insert.
See the beginning of this section (page 12-1) for details about each Econ strip type. 4. Press w. The strip is inserted above the line or the strip where the cursor is currently located.

k Catalog Function

The Catalog is an alphabetic list of all the commands available on this calculator. You can input a command by calling up the Catalog and then selecting the command you want.
u To use the Catalog to input a command
1. Press !e(CATALOG) to display an alphabetic Catalog list of commands.
2. Input the first letter of the command you want to input. This will display the first command that starts with that letter. 3. Use the cursor keys (f, c) to highlight the command you want to input, and then press w.
To use the Catalog to input the ClrGraph command A!e(CATALOG)I(C)c~cw
Pressing J or !J(QUIT) closes the Catalog.
1-3-8 Inputting and Editing Calculations
k Input Operations in the Math Input Mode
Selecting Math for the Input Mode setting on the Setup screen (page 1-7-1) turns on the Math input mode, which allows natural input and display of certain functions, just as they appear in your textbook.
The initial default Input Mode setting is Linear (Linear input mode). Before trying to perform any of the operations explained in this section, be sure to change the Input Mode setting to Math. In the Math input mode, all input is insert mode (not overwrite mode) input. Note that the !D(INS) operation (page 1-3-2) you use in the Linear input mode to switch to insert mode input performs a completely different function in the Math input mode. For more information, see Inserting a Function into an Existing Expression (page 1-3-13). Unless specifically stated otherwise, all operations in this section are performed in the RUN MAT mode.
1-3-9 Inputting and Editing Calculations
u Math Input Mode Functions and Symbols
The functions and symbols listed below can be used for natural input in the Math input mode. The Bytes column shows the number of bytes of memory that are used up by input in the Math input mode. Function/Symbol Fraction (Improper) Mixed Fraction*1 Power Square Negative Power (Reciprocal) $ !$(&) M x !)(x 1) !x( Cube Root Power Root !((3 !M(x !I(ex) !l(10x) (Input from MATH menu* ) (Input from MATH menu* ) (Input from MATH menu*2)

Key Operation

Bytes 14*1 1
10x log(a,b) Abs (Absolute Value) Linear Differential*3 Quadratic Differential* Integral*
(Input from MATH menu* ) (Input from MATH menu* ) (Input from MATH menu*2) (Input from MATH menu*2) ( and ) !*( { ) and !/( } ) !+( [ ) and !-( ] )
Calculation*4 Matrix Parentheses Braces (Used during list input.) Brackets (Used during matrix input.)
*1 Mixed fraction is supported in the Math input mode only. *2 For information about function input from the MATH function menu, see Using the MATH Menu on page 1-3-10.
*3 Tolerance cannot be specified in the Math input mode. If you want to specify tolerance, use the Linear input mode. *4 For calculation in the Math input mode, the pitch is always 1. If you want to specify a different pitch, use the Linear input mode. *5 This is the number of bytes for a matrix.

*3 Specifies the direction the cell cursor moves when you press the w key to register cell input, when the Sequence command generates a number table, and when you recall data from List memory.
1-8-1 Using Screen Capture

1-8 Using Screen Capture

Any time while operating the calculator, you can capture an image of the current screen and save it in capture memory.
u To capture a screen image
1. Operate the calculator and display the screen you want to capture.
2. Press !h(CAPTURE). This displays a memory area selection dialog box.
3. Input a value from 1 to 20 and then press w. This will capture the screen image and save it in capture memory area named Capt n (n = the value you input). You cannot capture the screen image of a message indicating that an operation or data communication is in progress. A memory error will occur if there is not enough room in main memory to store the screen capture.
u To recall a screen image from capture memory
1. In the RUN MAT mode (Linear input mode), press K6(g)6(g)5(CAPT) 1(RCL).
2. Enter a capture memory number in the range of 1 to 20, and then press w. You can also use the RclCapt command in a program to recall a screen image from capture memory.
1-9-1 When you keep having problems
1-9 When you keep having problems
If you keep having problems when you are trying to perform operations, try the following before assuming that there is something wrong with the calculator.
k Getting the Calculator Back to its Original Mode Settings
1. From the Main Menu, enter the SYSTEM mode. 2. Press 5(RSET). 3. Press 1(STUP), and then press 1(Yes). 4. Press Jm to return to the Main Menu. Now enter the correct mode and perform your calculation again, monitoring the results on the display.

k In Case of Hang Up

Should the unit hang up and stop responding to input from the keyboard, press the P button on the back of the calculator to reset the calculator to its initial defaults (see page -5-1). Note, however, that this may clear all the data in calculator memory.
1-9-2 When you keep having problems

k Low Battery Message

If either of the following messages appears on the display, immediately turn off the calculator and replace main batteries as instructed.

u To recall a function as a variable
daav(A)w baal(B)w K6(g)6(g)3(FMEM)3(fn) b+cw
u To display a list of available functions

K6(g)6(g)3(FMEM) 4(SEE)

# If the function memory number to which you store a function already contains a function, the previous function is replaced with the new one.
# The recalled function appears at the current location of the cursor on the display.

2-2-4 Special Functions

u To delete a function
To delete the contents of function memory number 1
AK6(g)6(g)3(FMEM) 1(STO)bw Executing the store operation while the display is blank deletes the function in the function memory you specify.
u To use stored functions
Example To store x3 + 1, x2 + x into function memory, and then graph: y = x3 + x2 + x + 1 Use the following V-Window settings. Xmin = 4, Ymin = 10, Xmax = 4, Ymax = 10, Xscale = 1 Yscale = 1
!m(SET UP)ccc1(Y=)J AvMd+bK6(g)6(g)3(FMEM)1(STO)bw(stores (x3 + 1)) JAvx+v1(STO)cw(stores (x2 + x)) JA!4(SKTCH)1(Cls)w 5(GRPH)1(Y=) K6(g)6(g)3(FMEM)3(fn)b+ 3(fn)cw For full details about graphing, see 5. Graphing.
# You can also use a to store a function in function memory in a program. In this case, you must enclose the function inside of double quotation marks.

2-2-5 Special Functions

kAnswer Function
The Answer Function automatically stores the last result you calculated by pressing w (unless the w key operation results in an error). The result is stored in the answer memory.
uTo use the contents of the answer memory in a calculation
Example 123 + 456 = 579 = 210 Abcd+efgw hij-!-(Ans)w In the Math input mode, the answer memory is refreshed with each calculation. Note, however, that the answer memory content recall operation is different from that used in the Linear input mode. For details, see History Function (page 2-2-6).
kPerforming Continuous Calculations
Answer memory also lets you use the result of one calculation as one of the arguments in the next calculation. Example = 133= Ab/dw (Continuing)*dw Continuous calculations can also be used with Type B functions (x2, x1, x!, page 2-1-4), +, , ^(xy), x', , etc.

k Inputting a List into a Calculation
There are two methods you can use to input a list into a calculation.
u To input a specific list by name
1. Press K to display the first Operation Menu. This is the function key menu that appears in the RUN MAT mode when you press K.
2. Press 1(LIST) to display the List Data Manipulation Menu. 3. Press 1(List) to display the List command and input the number of the list you want to specify.
3-3-2 Arithmetic Calculations Using Lists
u To directly input a list of values
You can also directly input a list of values using {, }, and ,. Example 1
To input the list: 56, 82, 64 !*( { )fg,ic, ge!/( } ) 0 4
Example 2 To multiply List 3

by the list

K1(LIST)1(List)d*!*( { )g,a,e!/( } )w is stored in ListAns Memory. 88

The resulting list

u To assign the contents of one list to another list
Use a to assign the contents of one list to another list. Example 1 To assign the contents of List 3 to List 1 K1(LIST)1(List)da1(List)bw In place of K1(LIST)1(List)d operation in the above procedure, you could input !*( { )eb,gf,cc!/( } ). Example 2 To assign the list in ListAns Memory to List 1 K1(LIST)1(List)!-(Ans)a1(List)bw
3-3-3 Arithmetic Calculations Using Lists
u To recall the value in a specific list cell
You can recall the value in a specific list cell and use it in a calculation. Specify the cell number by enclosing it inside square brackets. Example
To calculate the sine of the value stored in Cell 3 of List 2
sK1(LIST)1(List)c!+( [ )d!-( ] )w
u To input a value into a specific list cell
You can input a value into a specific list cell inside a list. When you do, the value that was previously stored in the cell is replaced with the new value you input. Example To input the value 25 into Cell 2 of List 3
cfaK1(LIST)1(List)d!+( [ )c!-( ] )w
k Recalling List Contents
Example To recall the contents of List 1

6. Select the sketch function you want to use.*1 !4(SKTCH) 1(Cls). Screen clear 2(Tang). Tangent line 3(Norm). Line normal to a curve 4(Inv). Inverse function*2 6(g)1(PLOT) {Plot}/{Pl On}/{Pl Off}/{Pl Chg}. Point {Plot}/{On}/{Off}/{Change} 6(g)2(LINE) {Line}/{F Line}.{connects 2 points plotted by 6(g)1(PLOT) with a line}/{for drawing a line between any 2 points} 6(g)3(Crcl). Circle 6(g)4(Vert). Vertical line 6(g)5(Hztl). Horizontal line 6(g)6(g)1(PEN). Freehand 6(g)6(g)2(Text). Text input 7. Use the cursor keys to move the pointer ( ) to the location where you want to draw, and press w.*3
*1 The above shows the function menu that appears in the GRAPH mode. Menu items may differ somewhat in other modes. *2 In the case of an inverse function graph, drawing starts immediately after you select this option.
*3 Some sketch functions require specification of two points. After you press w to specify the first point, use the cursor keys to move the pointer to the location of the second point and press w. # You can specify line type for the following sketch functions: Tangent, Normal, Inverse, Line, F Line, Circle, Vertical, Horizontal, Pen
5-10-2 Changing the Appearance of a Graph
1 m GRAPH 2 !3(V-WIN) 1(INIT)J 3 !m(SET UP)cccccc1( 5 6(DRAW) 6 !4(SKTCH)2(Tang) 7 e~ew*1 )J 4 3(TYPE)1(Y=)v(v+c)(v-c)w
*1 You can draw a tangent line in succession by moving the pointer and pressing w.
Draw a line that is tangent to point (2, 0) on the graph for

y = x (x + 2)(x 2).

Use the following V-Window settings. Xmin = 6.3, Xmax = 6.3, Xscale = 1 Ymin = 3.1, Ymax = 3.1, Yscale = 1 (initial defaults)
5-10-3 Changing the Appearance of a Graph

k Inserting Comments

You can insert comments anywhere you want in a graph.
2. Press !4(SKTCH)6(g)6(g)2(Text), and a pointer appears in the center of the display. 3. Use the cursor keys to move the pointer to the location where you want the text to be, and input the text.
# You can input any of the following characters as comment text: A~Z, r, , space, 0~9,., +, , , , (), EXP, , Ans, (, ), [, ], {, }, comma, ,
x2, ^, log, In, , x , 10x, ex, 3 , x1, sin, cos, tan, sin1, cos1, tan1, i, List, Mat,
5-10-4 Changing the Appearance of a Graph
1 m GRAPH !3(V-WIN) -fwfwbwc -fwfwbwJ 3(TYPE)1(Y=)v(v+c)(v-c)w 6(DRAW) 2 !4(SKTCH)6(g)6(g)2(Text) 3 f~f d~d a-(Y)!.(=)v(v+c)(v-c)
Insert text into the graph y = x (x + 2)(x 2). Use the following V-Window settings. Xmin = 5, Ymin = 5, Xmax = 5, Ymax = 5, Xscale = 1 Yscale = 1
5-10-5 Changing the Appearance of a Graph

k Freehand Drawing

You can use the pen option for freehand drawing in a graph.

# Any data already existing in the selected list is cleared. The residual of each plot is stored in the same precedence as the data used as the model.
6-3-11 Calculating and Graphing Paired-Variable Statistical Data
k Displaying the Calculation Results of a Drawn Paired-Variable Graph
Paired-variable statistics can be expressed as both graphs and parameter values. When these graphs are displayed, the paired-variable calculation results appear as shown below when you press 1(CALC)1(2VAR).
Use c to scroll the list so you can view the items that run off the bottom of the screen.
o.. mean of data stored in xList x. sum of data stored in xList x2. sum of squares of data stored in xList xn. population standard
deviation of data stored in
xList xn-1.. sample standard deviation of data stored in xList n.. number of data p.. mean of data stored in yList y. sum of data stored in yList
y2. sum of squares of data stored in yList yn. population standard deviation of data stored in yList yn-1. sample standard deviation of data stored in yList xy.. sum of the product of data stored in xList and yList minX. minimum of data stored in xList maxX. maximum of data stored in xList minY. minimum of data stored in yList maxY. maximum of data stored in yList
k Copying a Regression Graph Formula to the GRAPH Mode
You can copy regression formula calculation results to the GRAPH mode graph relation list, and store and compare. 1. While a regression calculation result is on the display (see Displaying Regression Calculation Results on page 6-3-5), press 5(COPY). This will display the GRAPH mode graph relation list.*1 2. Use f and c to highlight the area to which you want to copy the regression formula of the displayed result. 3. Press w to save the copied graph formula and return to the previous regression calculation result display.
*1 You cannot edit regression formulas for graph formulas in the GRAPH mode.
6-3-12 Calculating and Graphing Paired-Variable Statistical Data

k Multiple Graphs

You can draw more than one graph on the same display by using the procedure under Changing Graph Parameters to set the graph draw (On)/non-draw (Off) status of two or all three of the graphs to draw On, and then pressing 6(DRAW)(see page 6-1-4). After drawing the graphs, you can select which graph formula to use when performing singlevariable statistic or regression calculations.

1(CALC) 2(X)

The text at the top of the screen indicates the currently selected graph (StatGraph1 = Graph 1, StatGraph2 = Graph 2, StatGraph3 = Graph 3). 1. Press c. The graph name at the top of the screen changes when you do.
2. When the graph you want to use is selected, press w.

Data is specified using parameter specification. The following shows the meaning of each item.
x.. data df.. degrees of freedom (df > 0)
p.. Student-t probability density
# Current V-Window settings are used for graph drawing when the Setup screen's [Stat Wind] setting is [Manual]. The V-Window settings below are set automatically
when the [Stat Wind] setting is [Auto]. Xmin = 3.2, Xmax = 3.2, Xscale = 1, Ymin = 0.1, Ymax = 0.45, Yscale = 0.1

6-7-8 Distribution

u Student-t Distribution Probability
Student-t distribution probability calculates the probability of t distribution data falling between two specific values.

df + p= df 2 df

x2 1+ df

df+1 2

Perform the following key operations from the statistical data list. 5(DIST) 2(t) 2(tcd)
df.. degrees of freedom (df > 0)
# There is no graphing for Student-t distribution probability.

6-7-9 Distribution

p.. Student-t distribution probability t:Low.. t:Low value (input lower value) t:Up.. t:Up value (input upper value)

k 2 Distribution

u 2 Probability Density
2 probability density calculates the probability density function for the 2 distribution at a specified x value.

f(x) =

1 df 2
Perform the following key operations from the statistical data list. 5(DIST) 3(CHI) 1(Cpd)
x.. data df.. degrees of freedom (positive integer)

6-7-10 Distribution

p.. 2 probability density
when the [Stat Wind] setting is [Auto]. Xmin = 0, Xmax = 11.5, Xscale = 2, Ymin = -0.1, Ymax = 0.5, Yscale = 0.1

6-7-11 Distribution

u 2 Distribution Probability
2 distribution probability calculates the probability of 2 distribution data falling between two specific values.

p= 1 df 2

Perform the following key operations from the statistical data list. 5(DIST) 3(CHI) 2(Ccd)
df.. degrees of freedom (positive integer)
# There is no graphing for 2 distribution probability.

6-7-12 Distribution

p.. 2 distribution probability

k F Distribution

u F Probability Density F probability density calculates the probability density function for the F distribution at a specified x value.

n+d 2 f (x) = n d

5(DIST) 4(F) 1(Fpd)

1 + nx d

x.. data n:df.. numerator degrees of freedom (positive integer) d:df.. denominator degrees of freedom (positive integer)

6-7-13 Distribution

p.. F probability density

6-7-14 Distribution

u F Distribution Probability F distribution probability calculates the probability of F distribution data falling between two specific values.

n+d 2 p= n d

8-2-2 PRGM Mode Function Keys
u When you are inputting a program 2(BASE)*1
{TOP}/{BTM}/{SRC} {MENU} {d~o}. {decimal}/{hexadecimal}/{binary}/{octal} value input {LOG}. {logical operators} {DISP}. conversion of displayed value to {decimal}/{hexadecimal}/{binary}/{octal} {Aa}/{CHAR} Pressing !J(PRGM) displays the following PRGM (PROGRAM) menu. {Prog}. {program recall} {JUMP}/{?}/{^} ^ {REL}. {logical operator menu} {:}. {separator for expressions and commands} Pressing !m(SET UP) displays the mode command menu shown below. {Dec}/{Hex}/{Bin}/{Oct}
{EXE}/{EDIT}. program {execute}/{edit} {NEW}. {new program} {DEL}/{DELA}. {specific program}/{all program} delete {SRC}/{REN}. file name {search}/{change}
*1 Programs input after pressing 2(BASE) are indicated by B to the right of the file name.
8-3-1 Editing Program Contents
8-3 Editing Program Contents

k Debugging a Program

A problem in a program that keeps the program from running correctly is called a bug, and the process of eliminating such problems is called debugging. Either of the following symptoms indicates that your program contains bugs that require debugging. Error messages appearing when the program is run Results that are not within your expectations
u To eliminate bugs that cause error messages
An error message, like the one shown below, appears whenever something illegal occurs during program execution.
When such a message appears, press J to display the place in the program where the error was caused. The cursor will be flashing at the location of the problem. Check the Error Message Table (page -1-1) for steps you should take to correct the situation. Note that pressing J does not display the location of the error if the program is password protected. Instead, it returns to the program list screen.
u To eliminate bugs that cause bad results
If your program produces results that are not what you normally expect, check the contents of the program and make necessary changes. 1(TOP).. Moves the cursor to the top of the program 2(BTM).. Moves the cursor to the bottom of the program
8-3-2 Editing Program Contents
k Using an Existing Program to Create a New Program
Sometimes you can input a new program by using a program already in memory as a base. Simply recall the existing program, make the changes you need, and then execute it.
To use the OCTA program (page 8-1-2) to create a program that calculates the surface area (cm2) and volume (cm3) of regular tetrahedrons when the length of one side is 7, 10, and 15 cm Use TETRA as the file name.

Description: This command draws a Dynamic Graph during program execution in accordance with current Dynamic Graph parameters.

DrawFTG-Con, DrawFTG-Plt

Function: This command uses values in a generated table to graph a function. Description: This command draws a function graph in accordance with current conditions. DrawFTG-Con produces a connect type graph, while DrawFTG-Plt produces a plot type graph.

DrawGraph

Function: This command draws a graph.
Description: This command draws a graph in accordance with current conditions.

DrawR-Con, DrawR-Plt

Function: These commands use values in a generated table to graph a recursion expression with an (bn or cn) as the vertical axis and n as the horizontal axis. Description: These commands graph recursion expressions in accordance with current conditions, with an (bn or cn) as the vertical axis and n as the horizontal axis. DrawR-Con produces a connect type graph, while DrawR-Plt produces a plot type graph.

8-5-14 Command Reference

Function: These commands use values in a generated table to graph a recursion expression with an(bn or cn) as the vertical axis and n as the horizontal axis. Description: These commands graph recursion expressions in accordance with current conditions, with an(bn or cn) as the vertical axis and n as the horizontal axis. DrawR-Con produces a connect type graph, while DrawR-Plt produces a plot type graph.

DrawStat

Function: This draws a statistical graph. Syntax: See Using Statistical Calculations and Graphs in a Program on page 8-6-9. Description: This command draws a statistical graph in accordance with current statistical graph conditions.

DrawWeb

Function: This command graphs convergence/divergence of a recursion expression (WEB graph). Syntax: DrawWeb <recursion type>, <number of lines> Example: DrawWeb an+1 (bn+1 or cn+1), 5 Description: This command graphs convergence/divergence of a recursion expression (WEB graph). Omitting the number of lines specification automatically specifies the default value 30.

8-5-15 Command Reference

k Input/Output Commands (I/O)

Getkey

Function: This command returns the code that corresponds to the last key pressed. Syntax: Getkey Description: This command returns the code that corresponds to the last key pressed.

y-axis data (YList) x-axis data (XList)
Regression statistical calculation
LinearReg List 1, List 2, List 3

Calculation type*

* Any one of the following can be specified as the calculation type. LinearReg.. linear regression Med-MedLine. Med-Med calculation QuadReg. quadratic regression CubicReg. cubic regression QuartReg. quartic regression LogReg. logarithmic regression ExpReg. exponential regression PowerReg. power regression
Sinusoidal regression statistical calculation SinReg List 1, List 2
Logistic regression statistical calculation LogisticReg List 1, List 2
8-7-1 PRGM Mode Command List
8-7 PRGM Mode Command List

RUN Program

[F4](MENU) key
Level 1 Level 2 Level 3 Command
STAT DRAW On Off DrawOn DrawOff X=c Y> Y< Y Y STYL GMEM Sto Rcl DYNA On Off Var TYPE Y= r= TABL On Off TYPE Y= r= STYL RECR SEL+S On Off TYPE an X=cType Y>Type Y<Type YType YType NormalG_ ThickG_ BrokenThickG_ DotG_ StoGMEM_ RclGMEM_ D_SelOn_ D_SelOff_ D_Var_ Y=Type r=Type T_SelOn_ T_SelOff_ Y=Type r=Type NormalG_ ThickG_ BrokenThickG_ DotG_ R_SelOn_ R_SelOff_ NormalG_ ThickG_ BrokenThickG_ DotG_ anType CALC CPLX MAT LIST

[OPTN] key

List LM Dim Fill Seq Min Max Mean Med Aug Sum Prod Cuml % A Mat ML Det Trn Aug Iden Dim Fill i Abs Arg Conj ReP ImP

'r 'a+bi

X! nPr nCr Ran# P( Q( R( t(
! P C Ran#_ P( Q( R( t( Abs_ Int_ Frac_ Rnd Intg_ RndFix( r g
List_ ListMat( Dim_ Fill( Seq( Min( Max( Mean( Median( Augment( Sum_ Prod_ Cuml_ Percent_ AList_ Mat_ MatList( Det_ Trn_ Augment( Identity_ Dim_ Fill( i Abs_ Arg_ Conjg_ ReP_ ImP_
GRPH GPH1 S-Gph1_ GPH2 S-Gph2_ GPH3 S-Gph3_ Scat xy Hist Box Scatter xyLine Hist MedBox
Abs Int Frac Rnd Intg RndFi
N-Dis N-Dist Brkn Broken X Med X^2 X^3 X^4 Log Exp Pwr Sin NPP Lgst List MARK Linear Med-Med Quad Cubic Quart Log Exp Power Sinusoidal NPPlot Logistic List_ Square Cross Dot CALC 1VAR 1-Variable_ 2VAR 2-Variable_ X Med X^2 X^3 X^4 Log Exp Pwr Sin Lgst MAT Swap Rw Rw+ Rw+ LIST Srt-A Srt-D GRPH SEL On Off TYPE Y= r= LinearReg_ Med-MedLine_ QuadReg_ CubicReg_ QuartReg_ LogReg_ ExpReg_ PowerReg_ SinReg_ LogisticReg_ Swap_

ANGL r g

Parm ParamType

Pol( Rec(

ESYM m n p f k M G T P E PICT Sto Rcl FMEM fn LOGIC And Or Not CAPT Rcl
m n p f k M G T P E StoPict_ RclPict_ fn _And_ _Or_ Not_ RclCapt_
an+1 an+1Type an+2 an+2Type n.an n an bn cn RANG a0 a1 n an bn cn
Solve d/dx d2/dx2 dx FMin FMax ( logab

To exit the INS submenu without inserting anything, press J instead of a function key. A Range ERROR occurs if a line or column insert operation causes the current cells to exceed the range of A1:Z999.

k Clearing Cell Contents

Perform the following procedure when you want to clear the contents of specific cells.

u To clear cell contents

1. Select the cell(s) whose contents you want to clear. 2. Press 5(CLR). This will clear the contents of the currently selected cells.
9-5-1 S SHT Mode Commands

9-5 S SHT Mode Commands

This section explains how to use the S SHT mode commands.
u To input a S SHT mode command
1. Select the cells where you want to input the formula that contains the S SHT mode command. 2. Press 2(EDIT)3(CELL) or !.(=) to enter the edit mode. 2(EDIT)3(CELL) can be used if the selected cell already contains data. 3. Press the function menu key for the command you want to input. To input this command: CellIf( CellMin( CellMax( CellMean( CellMedian( CellSum( CellProd( 4. Input the other parameters. The additional parameters you need to input depend on the command you are using. For details, see S SHT Mode Command Reference on page 9-5-2. (Condition) (Minimum of Cells) (Maximum of Cells) (Mean of Cells) (Median of Cells) (Sum of Cells) (Product of Cells) Press this key: 4(If) 5(CEL)1(Min) 5(CEL)2(Max) 5(CEL)3(Mean) 5(CEL)4(Med) 5(CEL)5(Sum) 5(CEL)6(Prod) For details: Page 9-5-2 Page 9-5-2 Page 9-5-3 Page 9-5-3 Page 9-5-3 Page 9-5-4 Page 9-5-4
9-5-2 S SHT Mode Commands
k S SHT Mode Command Reference
This section provides details about the function and syntax of each command, as well as practical examples of how to use them. Note that you can omit anything enclosed in brackets ([ ]) in the Syntax of each command.

u CellIf(

Function: Returns expression 1 when the equation or inequality is true, and expression 2 when it is false. Syntax: CellIf( equation, expression 1, expression 2 [ ) ] CellIf( inequality, expression 1, expression 2 [ ) ] Example: If the value in cell A1 is greater than the value in cell B1, input the value of cell A1 into cell A2. Otherwise, input the value of cell B1 into cell A2.

u CellMin(

Function: Returns the lowest value contained in the range of specified cells. Syntax: CellMin( start cell : end cell [ ) ] Example: To determine the lowest value in the block whose upper left corner is located at A3 and whose lower right corner is located at C5, and input the result in cell A1:
9-5-3 S SHT Mode Commands

u CellMax(

Function: Returns the greatest value contained in the range of specified cells. Syntax: CellMax( start cell : end cell [ ) ] Example: To determine the greatest value in the block whose upper left corner is located at A3 and whose lower right corner is located at C5, and input the result in cell A1:

10-3-14 Inputting and Editing eActivity File Data
3. Press w to call up the graph screen. Since you have not input any data yet, the graph screen that appears will be blank. 4. Press !6(GT) to display the Graph Editor screen. This will display the current Graph strips Graph relation list. Since this list is independent of the GRAPH mode Graph relation list, it will be blank because this is a new Graph strip. 5. Input the function you want to graph (Y1 = X2 in this example).
6. Press 6(DRAW) to graph the function. This will display the graph screen with a graph of the function you input on the Graph Editor screen.
7. To return to the eActivity workspace screen, press !a(').
8. Press w again to call up the graph screen. This will re-graph the function you input in step 5.
# You can also paste a previously copied function from the clipboard into a graph screen called up from a Graph strip. Note, however, that a graph produced by pasting the function
is not stored in the memory of the Graph strip. For more information, see Using Copy and Paste to Draw a Graph (page 10-3-16).
10-3-15 Inputting and Editing eActivity File Data
u Table Editor Strip Example
In this example, we use a Table Editor strip to input the function y = x2, and reference List 1 of the List Editor for the x-variable range to generate a number table.
Use the Table Editor to input the function y = x2. Setup Table Editor (using the Setup screen) to reference List 1 for the x-variable and generate the numeric table. Call up the List Editor to input the data to be used as the range of the x-variable into List 1.
u To create a Table Editor strip
1. On the eActivity workspace screen, press 2(STRP), select Table Editor from the strip list that appears, and then press w. This will insert a Table Editor strip. 2. Input the strip title, and then press w. Here we will input Table create.
3. Press w to call up the Table Editor screen. This will display a blank Table Editor screen. 4. Input the function you want to use to generate the table (Y1 = X2 in this example).
5. Press !m(SET UP) to display the Setup screen. This will display the Table Editor Setup screen, with the Variable item highlighted. 6. Press 2(LIST). On the dialog box that appears, input 1 and then press w. Specify List 1 as the variable for generating the number table. 7. Press J to close the Setup screen.

-3-1 Specifications

3 Specifications
Variables: 28 Calculation range: 1 10
to 9.and 0. Internal operations use 15-digit mantissa.
Exponential display range: Norm 1: 102 > |x|, |x| > 1010 Norm 2: 109 > |x|, |x| > 1010 Program capacity: 63000 bytes (max.) Storage memory capacity: 1.5MB (max.) Power supply: Main: Four AAA-size batteries (LR03 (AM4)) Back-up: One CR2032 lithium battery Power consumption: 0.7 W Approximate battery life Main: LR03 (AM4):300 hours (continuous display of main menu) 220 hours continuous operation (5 minutes calculation, 55 minutes display) 90 hours when an SD card is used (fx-9860G SD only) 1 year (unused with power off) - Certain SD card types or frequent SD card access - Sequential program calculation execution - Certain battery types Back-up: 5 years Auto power off: Power is automatically turned off approximately six minutes or 60 minutes after last operation. Ambient temperature range: 0 C to 40 C Dimensions:24 mm (H) 92.5 mm (W) 184.5 mm (D) 1" (H) 3 5/8" (W) 7 1/4" (D)
Any of the following can shorten battery life.

-3-2 Specifications

Weight: fx-9860G SD Approx. 265 g (including batteries) fx-9860G Approx. 260 g (including batteries)

3-pin serial port

Method: Start-stop (asynchronous), half-duplex Transmission speed (BPS): 115200 bits/second (normal) 9600 bits/second (When connected to CFX-9850/fx-7400 series; Send/Receive commands) 38400 bits/second (Send38k/Receive38k commands)
<115200 bits/second>
Parity: EVEN Bit length: 8 bits Stop bit: Send: 1 bit Receive: 1 bit Includes parity (None) 1-bit X ON/X OFF Control: None
<9600, 38400 bits/second>
Parity: None Bit length: 8 bits Stop bit: Send: 3 bits Receive: 2 bits Includes parity (None) 1-bit X ON/X OFF Control: None

USB port

In accordance with USB 1.1 standards

-4-1 Key Index

4 Key Index
Primary Function Selects 1st function menu item. Selects 2nd function menu item. Selects 3rd function menu item. Selects 4th function menu item. Selects 5th function menu item. Selects 6th function menu item. Primary Function Activates shift functions of other
Combined with! Performs trace operation. Performs zoom operation. Displays V-Window parameter input screen. Performs sketch operation. Performs G-Solve operation. Switches display between graph and text screens. Combined with!