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Norm 2. 109 (0.000000001) > |x|, |x|
All of the examples in this manual show calculation results using Norm 1. See page 2-11 for details on switching between Norm 1 and Norm 2.

Special Display Formats

This calculator uses special display formats to indicate fractions, hexadecimal values, and degrees/minutes/seconds values. Fractions.. Indicates: 456 Hexadecimal Values. Indicates: 0ABCDEF1(16), which equals 180150001(10) Degrees/Minutes/Seconds.. Indicates: 56.78
In addition to the above, this calculator also uses other indicators or symbols, which are described in each applicable section of this manual as they come up.
3. Inputting and Editing Calculations

Inputting Calculations

When you are ready to input a calculation, first press to clear the display. Next, input your calculation formulas exactly as they are written, from left to right, and press to obtain the result. Example 2 + + 10 =

Editing Calculations

Use the and keys to move the cursor to the position you want to change, and then perform one of the operations described below. After you edit the calculation, you can execute it by pressing. Or you can use to move to the end of the calculation and input more. You can select either insert or overwrite for input*1. With overwrite, text you input replaces the text at the current cursor location. You can toggle between insert and overwrite by performing the operation: (INS). The cursor appears as I for insert and as for overwrite. *1 With all models except the fx-7400G /fx-9750G , insert and overwrite switzng is possible only when the Linear input/output mode (page 1-29) is selected.

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


( ) ( ) 0 ( )
(ANGL)** ( ) 20 ( ) 30 ( )39 ( ) 30 ( ) ( ) (ANGL)** ( ) ( DMS) (ANGL)

2.255 = 21518

2.255 * fx-7400GII, fx-9750GII:

** fx-7400GII:

Trigonometric and Inverse Trigonometric Functions
Be sure to set the angle unit before performing trigonometric function and inverse trigonometric function calculations. radians = 100 grads) 2 Be sure to specify Comp for Mode in the Setup screen. Example cos (
Operation (SET UP) ( ) 2 (SET UP) (sin1) 0.5*2 * fx-7400GII, fx-9750GII: * 3 * *1 (Deg) (Rad)
rad) = 0.5 cos 65 = 0.5976724775

2 sin 45

sin10.5 = 30 (x when sinx = 0.5) *1

can be omitted.

* Input of leading zero is not necessary.
Logarithmic and Exponential Functions
Be sure to specify Comp for Mode in the Setup screen. Example log 1.23 (log101.23) = 0.08990511144 log28 = 3 (3)4 = (3)
Operation 1.23 (CALC)* ( ) (logab) 2 8

(3) = 81 7

4 )123 * fx-7400GII: (CALC)
123 (= 123 ) = 1.988647795
The Linear input/output mode and Math input/output mode produce different results when two or more powers are input in series, like: 2. Linear input/output mode: 2^3^2 = 64 Math input/output mode: 23 = 512
This is because the Math input/output mode internally treats the above input as: 2^(3^(2)).
Hyperbolic and Inverse Hyperbolic Functions
Be sure to specify Comp for Mode in the Setup screen. Example sinh 3.6 = 18.28545536 cosh1

20 = 0.7953654612 15

Operation ( ) ( ) (HYP)* (HYP)* (sinh) 3.6 (cosh1) (HYP)

Other Functions

Be sure to specify Comp for Mode in the Setup screen. Example 2 + 5 = 3.65028154 (3)2 = (3) 8! (= (3) = 9 3. 8) = *1 fx-7400GII: (PROB) *2 fx-7400GII: (NUM) 8 ( 3 ( ) ( ) (PROB)*1 (NUM)*2 (x!) (Int) 3.5 )2 Operation ( )5
What is the integer part of 3.5?
Random Number Generation (RAND)
Random Number Generation (0 to 1) (Ran#, RanList#)
Ran# and RanList# generate 10 digit random numbers randomly or sequentially from 0 to 1. Ran# returns a single random number, while RanList# returns multiple random numbers in list form. The following shows the syntaxes of Ran# and RanList#. Ran# [a] RanList# (n [,a]) 1

a n 999

n is the number of trials. RanList# generates the number of random numbers that corresponds to n and displays them on the ListAns screen. A value must be input for n. a is the randomization sequence. Random numbers are returned if nothing is input for a. Entering an integer of 1 through 9 for a will return the corresponding sequential random number. Executing the function Ran# 0 initializes the sequences of both Ran# and RanList#. The sequence also is initialized when a sequential random number is generated with a different sequence of the previous execution using Ran# or RanList#, or when generating a random number. Ran# Examples Example Ran# (Generates a random number.) (Each press of number.) generates a new random ( ) (Ran#)1 (PROB)* (RAND) ( ) (Ran#) Operation (PROB)* (RAND)

Example To assign the values 1, 0, and 1 to variable A in Y = AX21, and draw a graph for each value (TYPE) (A) (GRPH) (=) (GRPH) (=) (GRPH) (=) (SEL) (DRAW) (Y) (A) (Y) (A) (Y) (A) (Y=)
The above three screens are produced using the Trace function. See Function Analysis (page 5-29) for more information.
Editing and Deleting Functions
To edit a function in memory
Example To change the expression in memory area Y1 from y = 2xto

y = 2 x2 3

(Displays cursor.) (Changes contents.) (Stores new graph function.)
To change the line style of a graph function
1. On the Graph relation list screen, use you want to change. 2. Press (STYL). 3. Select the line style. Example To change the line style of y = 2x2 3, which is stored in area Y1, to Broken (STYL) ( ) (Selects Broken.) and to highlight the relation whose line style
To change the type of a function *1
1. While the Graph relation list is on the display, press or to move the highlighting to the area that contains the function whose type you want to change. 2. Press (TYPE) (CONV). 3. Select the function type you want to change to. Example To change the function in memory area Y1 from y = 2xto y < 2 x(TYPE)


( Y<) (Changes the function type to Y<.)
* The function type can be changed for rectangular coordinate functions and inequalities only.
1. While the Graph relation list is on the display, press the area that contains the function you want to delete. 2. Press (DEL) or. 5-8 or to move the highlighting to
3. Press (Yes) to delete the function or anything.
(No) to abort the procedure without deleting
Using the above procedure to delete one line of a parametric function (such as Xt2) also will delete the applicable paired line (Yt2, in the case of Xt2).
Selecting Functions for Graphing
To specify the draw/non-draw status of a graph
1. On the Graph relation list, use 2. Press 3. Press Example (SEL). (SEL) toggles graphing on and off. (DRAW). To select the following functions for drawing: Y1 = 2x2 5, r2 = 5 sin3 Use the following V-Window settings. Xmin = 5, Ymin = 5, T min = 0, Xmax = 5, Ymax = 5, T max = , Xscale = 1 Yscale = 1 T ptch = 2 / 60 Each press of and to highlight the relation you do not want to graph.
(Select a memory area that contains a function for which you want to specify non-draw.) (SEL) (Specifies non-draw.) (DRAW) or (Draws the graphs.)
You can use the Setup screen settings to alter the appearance of the graph screen as shown below. Grid: On (Axes: On Label: Off) This setting causes dots to appear at the grid intersects on the display.
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.

Drawing a Scatter Diagram and xy Line Graph
The following procedure plots a scatter diagram and connects the dots to produce an xy line graph. 1. From the Main Menu, enter the STAT mode. 2. Input the data into a list. 3. Specify Scat (scatter diagram) or xy (xy line graph) as the graph type, and then execute the graph operation. Press Example , or (QUIT) to return to the statistical data list.
Input the two sets of data shown below. Next, plot the data on a scatter diagram and connect the dots to produce an xy line graph. 0.5, 1.2, 2.4, 4.0, 5.2 (xList) 2.1, 0.3, 1.5, 2.0, 2.4 (yList)
(Scatter diagram) (xy line graph)



(Scat) (xy)

(GPH1) (GPH1)

(Scatter diagram)

(xy line graph)
Drawing a Regression Graph
Use the following procedure to input paired-variable statistical data, perform a regression calculation using the data, and then graph the results. 1. From the Main Menu, enter the STAT mode. 2. Input the data into a list, and plot the scatter diagram. 3. Select the regression type, execute the calculation, and display the regression parameters. 4. Draw the regression graph.
Input the two sets of data shown below and plot the data on a scatter diagram. Next, perform logarithmic regression on the data to display the regression parameters, and then draw the corresponding regression graph. 0.5, 1.2, 2.4, 4.0, 5.2 (xList) 2.1, 0.3, 1.5, 2.0, 2.4 (yList)


(SET) ( ) (Log)


You can perform trace on a regression graph. You cannot perform trace scroll. Input a positive integer for frequency data. Other types of values (decimals, etc.) cause an error.
Selecting the Regression Type
After you graph paired-variable statistical data, you can use the function menu at the bottom of the display to select from a variety of different types of regression. {ax+b}/{a+bx}/{Med}/{X^2}/{X^3}/{X^4}/{Log}/{ae^bx}/{ab^x}/{Pwr}/{Sin}/{Lgst}. {linear regression (ax+b form)}/{linear regression (a+bx form)}/{Med-Med}/{quadratic regression}/{cubic regression}/{quartic regression}/{logarithmic regression}/{exponential regression (aebx form)}/{exponential regression (abx form)}/{power regression}/ {sinusoidal regression}/{logistic regression} calculation and graphing {2VAR}. {paired-variable statistical results}
Displaying Regression Calculation Results
Whenever you perform a regression calculation, the regression formula parameter (such as a and b in the linear regression y = ax + b) calculation results appear on the display. You can use these to obtain statistical calculation results. Regression parameters are calculated as soon as you press a function key to select a regression type, while a graph is on the display. The following parameters are used by linear regression, logarithmic regression, exponential regression, and power regression.

0 can be specified by entering 0 as the initial argument of * condition the one-sample Z test command OneSampleZTest.
1. From the Main Menu, enter the RUN MAT mode. 2. Perform the following key operation. (STAT) (1-S) ( ) (TEST) (Z)
The following calculation results are displayed as ListAns elements 1 through 4. 1: z score 2: p-value 3: 4: n For details about the function of the supported TEST command and their syntax, see Using the TEST Command to Execute a Command in a Program (page 8-32).

5. Tests

Test calculations cannot be performed on the fx-7400GII. The Z Test provides a variety of different standardization-based tests. They make it possible to test whether or not a sample accurately represents the population when the standard deviation of a population (such as the entire population of a country) is known from previous tests. Z testing is used for market research and public opinion research, that need to be performed repeatedly. 6-22
1-Sample Z Test tests for the unknown population mean when the population standard deviation is known. 2-Sample Z Test tests the equality of the means of two populations based on independent samples when both population standard deviations are known. 1-Prop Z Test tests for an unknown proportion of successes. 2-Prop Z Test tests to compare the proportion of successes from two populations. The t Test tests the hypothesis when the population standard deviation is unknown. The hypothesis that is the opposite of the hypothesis being proven is called the null hypothesis, while the hypothesis being proved is called the alternative hypothesis. The t Test is normally applied to test the null hypothesis. Then a determination is made whether the null hypothesis or alternative hypothesis will be adopted. 1-Sample t Test tests the hypothesis for a single unknown population mean when the population standard deviation is unknown. 2-Sample t Test compares the population means when the population standard deviations are unknown. LinearReg t Test calculates the strength of the linear association of paired data. With the 2 test, a number of independent groups are provided and a hypothesis is tested relative to the probability of samples being included in each group. The 2 GOF test ( 2 one-way Test) tests whether the observed count of sample data fits a certain distribution. For example, it can be used to determine conformance with normal distribution or binomial distribution. The 2 two-way test creates a cross-tabulation table that structures mainly two qualitative variables (such as Yes and No), and evaluates the independence of the variables. 2-Sample F Test tests the hypothesis for the ratio of sample variances. It could be used, for example, to test the carcinogenic effects of multiple suspected factors such as tobacco use, alcohol, vitamin deficiency, high coffee intake, inactivity, poor living habits, etc. ANOVA tests the hypothesis that the population means of the samples are equal when there are multiple samples. It could be used, for example, to test whether or not different combinations of materials have an effect on the quality and life of a final product. One-Way ANOVA is used when there is one independent variable and one dependent variable. Two-Way ANOVA is used when there are two independent variables and one dependent variable. The following pages explain various statistical calculation methods based on the principles described above. Details concerning statistical principles and terminology can be found in any standard statistics textbook. On the initial STAT mode screen, press the following items. (TEST) (TEST) to display the test menu, which contains

Cash_PBP: Returns the payback period. Syntax: Cash_NFV: Syntax: Cash_PBP(I%, Csh) Returns the net future value. Cash_NFV(I%, Csh)
Amortization Amt_BAL: Syntax: Amt_INT: Syntax: Amt_PRN: Syntax: Amt_ INT: Syntax: Returns the remaining principal balance following payment PM2. Amt_BAL(PM1, PM2, I%, PV, PMT, P/Y, C/Y) Returns the interest paid for payment PM1. Amt_INT(PM1, PM2, I%, PV, PMT, P/Y, C/Y) Returns the principal and interest paid for payment PM1. Amt_PRN(PM1, PM2, I%, PV, PMT, P/Y, C/Y) Returns the total principal and interest paid from payment PM1 to PM2. Amt_ INT(PM1, PM2, I%, PV, PMT, P/Y, C/Y)
Amt_ PRN: Returns the total principal paid from payment PM1 to PM2. Syntax: Amt_ PRN(PM1, PM2, I%, PV, PMT, P/Y, C/Y)
Interest Rate Conversion Cnvt_EFF: Syntax: Cnvt_APR: Syntax: Returns the interest rate converted from the nominal interest rate to the effective interest rate. Cnvt_EFF(n, I%) Returns the interest rate converted from the effective interest rate to the nominal interest rate. Cnvt_APR(n, I%)
Cost, Selling Price, Margin Calculations Cost: Syntax: Sell: Syntax: Margin: Syntax: Returns the cost based on a specified selling price and margin. Cost(Sell, Margin) Returns the selling price based on a specified cost and margin. Sell(Cost, Margin) Returns the margin based on a specified cost and selling price. Margin(Cost, Sell) 8-36
Day/Date Calculations Days_Prd: Syntax: Returns the number of days from a specified d1 to specified d2. Days_Prd(MM1, DD1, YYYY1, MM2, DD2, YYYY2)
Bond Calculations Bond_PRC: Returns in list form bond prices based on specified conditions. Syntax: Bond_PRC(MM1, DD1, YYYY1, MM2, DD2, YYYY2, RDV, CPN, YLD) = {PRC, INT, CST}
Bond_YLD: Returns the yield based on specified conditions. Syntax: Bond_YLD(MM1, DD1, YYYY1, MM2, DD2, YYYY2, RDV, CPN, PRC)
7. PRGM Mode Command List
Not all of the commands listed below are available on all models covered by this manual. RUN Program (MENU) key

Level 1 Level 2 Level 3

STAT DRAW On Off GRPH GPH1 GPH2 GPH3 Scat xy Hist Box Bar N-Dis Brkn X Med X^2 X^3 X^4 Log Pwr Sin NPP Lgst Pie List TYPE DIST X^4 Log Pwr Sin Lgst MAT Swap Rw Rw+ Rw+ Srt-A Srt-D SEL QuartReg_ LogReg_ *4 PowerReg_ SinReg_ LogisticReg_ Swap_ Row_ Row+_ Row+_ SortA( SortD( G_SelOn_ G_SelOff_ Y=Type r=Type ParamType X=Type Y>Type Y<Type Y Type Y Type X>Type X<Type X Type X Type NormalG_ ThickG_ BrokenThickG_ DotG_ StoGMEM_ RclGMEM_ D_SelOn_ D_SelOff_ D_Var_ Y=Type r=Type ParamType TABL On Off TYPE T_SelOn_ T_SelOff_ Y=Type r=Type ParamType NormalG_ ThickG_ BrokenThickG_ DotG_ R_SelOn_ R_SelOff_ NormalG_ ThickG_ BrokenThickG_ DotG_ a nType a n+1Type a n+2Type n an a n+1 a n+2 bn b n+1 b n+2 cn c n+1 c n+2 an a n+1 a n+2 bn b n+1 b n+2 cn c n+1 c n+2

General Graph Settings Screen Operations
You can use the general graph setting screen to specify the range of data to be used for graphing, and to select the type of graph to be drawn.
To configure statistical graph settings
1. Input the statistical calculation data into the spreadsheet and then select the range of cells you want to graph. Actually, the above step is not necessary at this point. You also could configure settings first before inputting data and selecting the range of cells to be graphed. 2. Press ( ) (GRPH) (SET). You can configure the setting for the item that is highlighted on the screen. This will display the general graph settings screen (StatGraph1 in this example).
A function menu will appear when certain setting items are selected.
The number of columns you select in step 1 will determine what information is input automatically on the general graph settings screen. If you select this number of columns: 3 This information will be input automatically: XCellRange XCellRange, YCellRange XCellRange, YCellRange, Frequency
The following describes each of the setting items for this screen. Item StatGraph1 Graph Type XCellRange YCellRange Frequency Description Select the name of the setup you want. You can have up to three different setups registered, named StatGraph 1, 2, or 3. Select the graph type. The initial default setting is Scat (scatter plot). Specifies the cell range assigned to the graph x-axis (XCellRange). Only XCellRange is displayed for some Graph Types. Specifies the cell range assigned to the graph y-axis (YCellRange). The YCellRange is not displayed for some Graph Types. Specifies the range cells that contain values indicating the frequency of each graph data item. Select (1) if you do not want to use frequency values. Specify the type of mark ( , , or ) to use as the mark on the scatter plot.

Mark Type

3. Use and to move the highlighting to the setting item you want to change. On the function menu that appears, select the setting you want. For details about the StatGraph1, Graph Type, and Mark Type settings, see To display the general graph settings screen (page 6-2). If you want to change the XCellRange, YCellRange, or Frequency setting, move the highlighting to the item you want to change and then input the cell range directly, or select (CELL) ( (CELL) for Frequency) and then edit the currently input range. When inputting a cell range manually, use (:) to enter a colon (:) between two cells that define the range. 4. After configuring the required settings, press or.
Example of Statistical Calculation Operation (CALC Menu)
This example uses the data from the Drawing a Scatter Diagram and xy Line Graph (page 6-9) to perform paired-variable statistical calculations. 0.5, 1.2, 2.4, 4.0, 5.2 2.1, 0.3, 1.5, 2.0, 2.4 (x-data) (y-data)
To perform paired-variable statistical calculations and regression calculations 1. Input the above x-data into cells A1:A5 of the spreadsheet and the y-data into cells B2:B5, and then

eActivity files can be used by a teacher, for example, to create math problems or exercises that provide hints to solutions, for distribution to students. Students can use eActivity files to keep classroom notes, memos of problems and their solutions, etc.
The fx-7400GII and fx-9750GII are not equipped with the e ACT mode.

1. eActivity Overview

The first thing that appears when you select the e ACT mode on the Main Menu is the file menu.
No e ACT mode files in memory At least one e ACT mode file in Opening a file in the eActivity mode will display a workspace screen that you can use for inputting and editing text, calculation expressions, and other data. Calculators display area Text lines Strip

Math lines Stop line

The following explains the type of data you can input and edit in an eActivity file. Text line..A text line can be used to input characters, numbers, and expressions as text. Calculation line.Use the calculation line to enter an executable calculation formula. The result will appear in the following line. Calculations are performed the same way as they are performed in the RUN MAT mode, while natural input is enabled. Stop line.A stop line can be used to stop calculation at a particular point. Strip..A strip can be used to embed data into an eActivity from the Graph, Conics Graph, Spreadsheet, or other built-in applications.
2. eActivity Function Menus

File List Function Menu

{OPEN}. Opens an eActivity file or folder. {NEW}. Creates a new eActivity file. {DEL}. Deletes an eActivity file. {SRC}. Searches for an eActivity file. {SD}/{SMEM}. Toggles the files displayed in the file menu between calculator main memory files and SD card memory files (models that support SD cards only). This menu item shows {SD} while the file menu is showing main memory files and {SMEM} while the file menu is showing SD card files. Only the (NEW) function key is are displayed when there are no eActivity files in memory.
At least 128 kbytes of memory area is required when the e ACT mode is used for the first time. A Memory Full error will appear if there is not enough memory available.

If the text is wrapped into multiple lines, pressing the key will delete the line where the cursor is currently located only. The part of the text that is wrapped to other lines will not be deleted. Always use natural input (page 1-10) to input an expression into a text line. *1 Also, any word that includes the symbol , { or , which are input using the menu that appears when you press (CHAR), does not wrap.
Inputting into a Calculation Line
Inputting a calculation expression into an eActivity calculation line and pressing will display the calculation result in the following line. Such a calculation line can be used in the same way as the RUN MAT mode (page 1-3). A calculation line and its result make up one set. Note that the word wrap function does not apply in the case of math lines. Scroll arrows ( ) will appear on the left and right sides of the calculation line to let you know some of the calculation does not fit within the calculation line display area. In this case, you can use the left and right cursor keys to scroll the calculation.
To input a calculation formula into an eActivity
1. Move the cursor to a calculation line. While the cursor is in a calculation line, CALC will be displayed for the F3 function menu item. This indicates that calculation expression input is enabled.

Math line cursor

This will cause the CALC.

key menu to change to

TEXT will be displayed for the F3 function menu item if the cursor is located in a text line. Pressing (CALC) will change the calculation line to a text line. If the cursor is located in a strip, use line. and to move to the cursor to a calculation
On the function menu, selecting {INS} and then {CALC} will insert a new calculation line above the line where the cursor is currently located. 2. Input a calculation expression (Example: Calculation line input and editing operations are the same as those in the natural input RUN MAT mode. ( ) ).
3. To obtain the result of the calculation, press
Matrix Calculations Using the Matrix Editor
Selecting { MAT} on the function menu displays the Matrix Editor. Matrix Editor operations and matrix calculations in the eActivity mode are the fundamentally identical to those in the RUN MAT mode. For details about the Matrix Editor and matrix calculation operations, see Matrix Calculations (page 2-36). Note, however, that eActivity mode Matrix Editor operations and matrix calculations differ from those in the RUN MAT mode as described below. eActivity mode matrix variable values are saved separately for each file. Matrix variable values will be different from those produced when called from a non-eActivity mode.

Use the following procedure to transfer calculator screen images to a computer. Perform this procedure using fx-9860G Manager PLUS software running on the computer. 1. After starting up Screen Receiver on the fx-9860G Manager PLUS software, use the USB cable to connect the calculator to your computer. Connecting the USB cable to the calculator will cause the Select Connection Mode dialog box to appear. 2. Press (ScreenRecv). 3. On the calculator, display the screen you want to transfer. 4. The displayed image is sent automatically to the computer. 5. To continue with auto screen image send, return to step 3. 6. To stop auto screen image send, press main menu. (CAPT) (Mem) on the data communication
Connecting to a Projector (Not available on the fx-7400GII)
You can connect the calculator to a CASIO projector and project calculator screen contents onto a screen.
Connectable Projectors (As of January 2009)
XJ-S35, XJ-S36, XJ-S46, XJ-S37, XJ-S47, XJ-S57, XJ-SC215 You can also connect the calculator to a YP-100 Multifunctional Presentation Kit and project from the projectors other than the model shown above.
To project calculator screen contents from a projector
1. Use the USB cable that comes with the calculator to connect to the projector (or YP-100 unit). Connecting the USB cable to the calculator will cause the Select Connection Mode dialog box to appear. 2. Press (Projector).
Precautions when Connecting
An hourglass figure may remain projected on the screen after you connect the calculator to a projector (or YP-100). If this happens, performing some operation on the calculator will restore normal display. If the calculator stops operating normally, disconnect the USB cable and then reconnect it. If this does not correct the problem, disconnect the USB cable, turn the projector (or YP-100) off and then back on, and then reconnect the USB cable.
You can use SD cards to store calculator data. You can copy main memory and storage memory data to and from an SD card.

All of the explanations provided here assume that you are already familiar with the operating precautions, terminology, and operational procedures of the calculator and the EA-200.


1-1 E-CON2 Overview

1 E-CON2 Overview

From the Main Menu, select E-CON2 to enter the E-CON2 Mode.

E-CON2 Main Menu

The E-CON2 Mode provides the functions listed below for simple and more efficient data sampling using the CASIO EA-200. 1(SET). Displays a screen for setting up the EA-200. 2(MEM). Displays a screen for saving EA-200 setup data under a file name. 3(PROG).. Performs program conversion. This function can be used to convert EA-200 setup data configured using E-CON2 to an EA-200 control program (or EA-100 control program) that can run on the fx-9860G SD/fx-9860G. It also can be used to convert data to a program that can be run on a CFX-9850 Series/fx-7400 Series calculator. 4(STRT). Starts data collection. 5(GRPH).. Graphs data sampled by the EA-200, and provides tools for analyzing graphs. Graph Analysis tools include calculation of periodic frequency, various types of regression, Fourier series calculation, and more. 6(HELP). Displays E-CON2 help. Pressing the K key (Setup Preview) or a cursor key while the E-CON2 main menu is on the screen displays a preview dialog box that shows the contents of the setup in the current setup memory area.
To close the preview dialog box, press J. Note For details about setup data and the current setup memory area, see 6 Using Setup Memory (page 6-1).

About online help

Pressing the 6(HELP) key displays online help about the E-CON2 Mode.

20070101 20051101

2-1 Using the Setup Wizard

2 Using the Setup Wizard

This section explains how to use the Setup Wizard to configure the EA-200 setup quickly and easily simply by replying to questions as they appear. If you need more control over specific sampling parameters, you should consider using the Advanced Setup procedure on page 3-1.
k Setup Wizard Parameters
Setup Wizard lets you make changes to the following three EA-200 basic sampling parameters using an interactive wizard format. Sensor (Select Sensor): Specify a CASIO or VERNIER* sensor from a menu of choices. *Vernier Software & Technology Total Sampling Time: Specify a value within the range of 0.01 second to 30 days. Sampling Time Unit (Select Unit): Specify seconds (sec), minutes (min), hours (hour), or days (day) as the time unit of the value you input for the total sampling time (Total Sampling Time). Note For some sensors (EA-200 built-in microphone, Vernier PhotoGate, etc.), sampling parameters are different from those shown above. The differences between sampling parameters and setup procedures for each sensor are described in this section.

u To return setup parameters to their initial defaults
Perform the following procedure when you want to return the parameters of the setup in the current setup memory area to their initial defaults. 1. While the Advanced Setup menu (page 3-1) is on the display, press g(Initialize).
2. In response to the confirmation message that appears, press 1(Yes) to initialize the setup. To clear the confirmation message without initializing the setup, press 6(No).

3-3 Using Advanced Setup

k Channel Setup
The Channel Setup screen shows the sensors that are currently assigned to each channel (CH1, CH2, CH3, SONIC, Mic). u To configure Channel Setup settings 1. While the Advanced Setup menu (page 3-1) is on the display, press b(Channel). This displays the Channel Setup screen.
Currently selected channel

Channel Setup Screen

2. Use the f and c cursor keys to move the highlighting to the channel whose setting you want to change. 3. What you need to do next depends on the currently selected channel. CH1, CH2, or CH3 Press a function key to display a menu of sensors that can be assigned to the selected channel. 1(CASIO). Displays a menu of CASIO sensors. 2(VRNR). Displays a menu of Vernier sensors. 3(CSTM). Displays a menu of custom probes. 4(None). Press this key when you want leave the channel without any sensor assigned to it. SONIC Channel Press a function key to display a menu of sensors that can be assigned to this channel. 1(CASIO). Displays a menu of CASIO sensors, but only Motion can be selected. 2(VRNR). Displays a menu of Vernier sensors. You can select Motion or Photogate. Note On the menu that appears after you select Motion from either the CASIO or Vernier sensor menu, select either meters or feet as the sampling unit. After selecting Motion from either the CASIO or Vernier sensor menu, you can press the K key to toggle smoothing (correction of measurement error) on (-Smooth displayed) and off (-Smooth not displayed).

3-4 Using Advanced Setup

From the menu that appears after you select Photogate as the sensor, select [Gate] or [Pulley]. [Gate].. Select this option when using the PhotoGate sensor alone. [Pulley]. Select this option when using the PhotoGate sensor along with a smart pulley. 4(None). Select this option to disable the SONIC channel. Mic Channel For this channel, the sensor is automatically set to Built-in (External) Microphone. However, you need to configure the settings described below. 1(Snd). Select this option to record elapsed time and volume 2-dimensional sampled sound data (elapsed time on the horizontal axis, volume on the vertical axis). 2(FFT). Select this option to record frequency and volume 2-dimensional sampled sound data (frequency on the horizontal axis, volume on the vertical axis). 4(None). Select this option to disable the Mic channel. 4. Repeat steps 2 and 3 as many times as necessary to configure all the channels you want. 5. After all the settings are the way you want, press w. This returns to the Advanced Setup menu. Note When you select a channel on the Channel Setup screen, the sampling range of the selected channel appears in the bottom line of the screen.

8-2 Starting a Sampling Operation

u To start sampling

1. Start the sampling operation by performing one of the function key operations described below. If the final Setup Wizard screen (page 2-4) is on the display, press b(Start Setup). If the Advanced Setup menu (page 3-1) is on the display, press 1(STRT). If the E-CON2 main menu (page 1-1) is on the display, press 4(STRT). After you perform any one of the above operations, a sampling start confirmation screen like the one shown below will appear on the display.
2. Press w. This sets up the EA-200 using the setup data in the current setup memory area. The message Setting EA-200. remains on the display while EA-200 setup is in progress. You can cancel the setup operation any time this message is displayed by pressing A. The screen shown below appears after EA-200 setup is complete.
3. Press w to start sampling. The screens that appear while sampling is in progress and after sampling is complete depend on setup details (sampling mode, trigger setup, etc.). For details, see Operations during a sampling operation below.
u Operations during a sampling operation
Sending a sample start command from the calculator to the EA-200 causes the following sequence to be performed. Setup Data Transfer Sampling Start Sampling End Transfer of Sample Data from the EA-200 to the Calculator The table on the next page shows how the trigger conditions and sensor type specified in the setup data affects the above sequence.

Starts Sampling

2. Start Standby 3. Sampling 4. Graphing
Sampled values are saved as Current Sample Data.

1. EA-200 Setup

The screen shown below appears when CH1, SONIC, or Mic is used as the trigger. w
When Mode = Sound Graph screen does not show all sampled values, but only a partial preview.


8-3 Starting a Sampling Operation

Input values. w w

Outputting through speaker


Pressing 1 advances to 4. Graphing. Pressing w there returns to 3. Sampling. When Number of Samples = 1


The following three graph types can be produced when PhotoGate-Pulley is being used. 1. Time and distance graph 2. Time and velocity graph When Number of Samples > 1 3. Time and acceleration graph Sample values is stored as List data only.
9-1 Using Sample Data Memory
9 Using Sample Data Memory
Performing an EA-200 sampling operation from the E-CON2 Mode causes sampled results to be stored in the current data area of E-CON2 memory. Separate data is saved for each channel, and the data for a particular channel in the current data area is called that channels current data. Any time you perform a sampling operation, the current data of the channel(s) you use is replaced by the newly sampled data. If you want to save a set of current data and keep it from being replaced by a new sampling operation, save the data in sample data memory under a different file name.



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