When an entry is executed on the home screen, the answer is displayed on the right side of the next line.

Entry Answer

The mode settings control the way the TI-83 Plus interprets expressions and displays answers. If an answer, such as a list or matrix, is too long to display entirely on one line, an ellipsis (.) is displayed to the right or left. Press ~ and | to display the answer.
Returning to the Home Screen To return to the home screen from any other screen, press y 5. Busy Indicator When the TI-83 Plus is calculating or graphing, a vertical moving line is displayed as a busy indicator in the top-right corner of the screen. When you pause a graph or a program, the busy indicator becomes a vertical moving dotted line.
Display Cursors In most cases, the appearance of the cursor indicates what will happen when you press the next key or select the next menu item to be pasted as a character.
Cursor Appearance Effect of Next Keystroke
Entry Insert Second Alpha Full
Solid rectangle $ Underline
A character is entered at the cursor; any existing character is overwritten A character is inserted in front of the cursor location A 2nd character (yellow on the keyboard) is entered or a 2nd operation is executed An alpha character (green on the keyboard) is entered or SOLVE is executed No entry; the maximum characters are entered at a prompt or memory is full
Reverse arrow Reverse A Checkerboard rectangle #
If you press during an insertion, the cursor becomes an underlined A (A). If you press y during an insertion, the underlined cursor becomes an underlined # (#). Graphs and editors sometimes display additional cursors, which are described in other chapters.
TI-83 Plus Operating the TI-83 Plus Silver Edition 12
Entering Expressions and Instructions
What Is an Expression? An expression is a group of numbers, variables, functions and their arguments, or a combination of these elements. An expression evaluates to a single answer. On the TI-83 Plus, you enter an expression in the same order as you would write it on paper. For example, pR2 is an expression. You can use an expression on the home screen to calculate an answer. In most places where a value is required, you can use an expression to enter a value.
Entering an Expression To create an expression, you enter numbers, variables, and functions from the keyboard and menus. An expression is completed when you press , regardless of the cursor location. The entire expression is evaluated according to Equation Operating System (EOS) rules, and the answer is displayed.
Most TI-83 Plus functions and operations are symbols comprising several characters. You must enter the symbol from the keyboard or a menu; do not spell it out. For example, to calculate the log of 45, you must press 45. Do not enter the letters L, O, and G. If you enter LOG, the TI-83 Plus interprets the entry as implied multiplication of the variables L, O, and G.

Drawing Pixels

TI-83 Plus Pixels A pixel is a square dot on the TI-83 Plus display. The Pxl. (pixel) instructions let you turn on, turn off, or reverse a pixel (dot) on the graph using the cursor. When you select a pixel instruction from the DRAW POINTS menu, the TI-83 Plus returns to the home screen or the program editor. The pixel instructions are not interactive.
Turning On and Off Pixels with Pxl.On( and Pxl.Off(
Pxl.On( (pixel on) turns on the pixel at (row,column), where row is an integer between 0 and 62 and column is an integer between 0 and 94. Pxl.Off( turns the pixel off. Pxl.Change( toggles the pixel on and off. Pxl.On(row,column) Pxl.Off(row,column) Pxl.Change(row,column)
TI-83 Plus Draw Instructions 237

Using pxl.Test(

pxl.Test( (pixel test) returns 1 if the pixel at (row,column) is turned on or 0 if the pixel is turned off on the current graph. row must be an integer between 0 and 62. column must be an integer between 0 and 94. pxl.Test(row,column)
Split Screen On a Horiz split screen, the maximum value for row is 30 for Pxl.On(, Pxl.Off(, Pxl.Change(, and pxl.Test(. On a G.T split screen, the maximum value for row is 50 and the maximum value for column is 46 for Pxl.On(, Pxl.Off(, Pxl.Change(, and pxl.Test(.
Storing Graph Pictures (Pic)
DRAW STO Menu To display the DRAW STO menu, press y < |. When you select an instruction from the DRAW STO menu, the TI-83 Plus returns to the home screen or the program editor. The picture and graph database instructions are not interactive.
DRAW POINTS STO 1: StorePic 2: RecallPic 3: StoreGDB 4: RecallGDB
Stores the current picture. Recalls a saved picture. Stores the current graph database. Recalls a saved graph database.
Storing a Graph Picture You can store up to 10 graph pictures, each of which is an image of the current graph display, in picture variables Pic1 through Pic9, or Pic0. Later, you can superimpose the stored picture onto a displayed graph from the home screen or a program.
A picture includes drawn elements, plotted functions, axes, and tick marks. The picture does not include axes labels, lower and upper bound indicators, prompts, or cursor coordinates. Any parts of the display hidden by these items are stored with the picture. To store a graph picture, follow these steps. 1. Select 1:StorePic from the DRAW STO menu. StorePic is pasted to the current cursor location. 2. Enter the number (from 1 to 9, or 0) of the picture variable to which you want to store the picture. For example, if you enter 3, the TI-83 Plus will store the picture to Pic3.
Note: You also can select a variable from the PICTURE secondary menu ( 4). The variable is pasted next to StorePic.
3. Press to display the current graph and store the picture.
Recalling Graph Pictures (Pic)
Recalling a Graph Picture To recall a graph picture, follow these steps. 1. Select 2:RecallPic from the DRAW STO menu. RecallPic is pasted to the current cursor location. 2. Enter the number (from 1 to 9, or 0) of the picture variable from which you want to recall a picture. For example, if you enter 3, the TI-83 Plus will recall the picture stored to Pic3.

Any expressions are evaluated when the entry is executed.
Note: The commas that you must enter to separate elements are not displayed on output.
Displaying and Copying Matrices
Displaying a Matrix To display the contents of a matrix on the home screen, select the matrix from the MATRX NAMES menu, and then press.
Ellipses in the left or right column indicate additional columns. # or $ in the right column indicate additional rows. Press ~, |, , and } to scroll the matrix.
Copying One Matrix to Another To copy a matrix, follow these steps. 1. Press y > to display the MATRX NAMES menu. 2. Select the name of the matrix you want to copy.

TI-83 Plus Matrices 267

3. Press. 4. Press y > again and select the name of the new matrix to which you want to copy the existing matrix. 5. Press to copy the matrix to the new matrix name.
Accessing a Matrix Element On the home screen or from within a program, you can store a value to, or recall a value from, a matrix element. The element must be within the currently defined matrix dimensions. Select matrix from the MATRX NAMES menu.

[matrix](row,column)

Using Math Functions with Matrices
Using Math Functions with Matrices You can use many of the math functions on the TI-83 Plus keyboard, the MATH menu, the MATH NUM menu, and the MATH TEST menu with matrices. However, the dimensions must be appropriate. Each of the functions below creates a new matrix; the original matrix remains the same. + (Add), (Subtract), (Multiply) To add () or subtract () matrices, the dimensions must be the same. The answer is a matrix in which the elements are the sum or difference of the individual corresponding elements.
matrixA+matrixB matrixANmatrixB
To multiply () two matrices together, the column dimension of matrixA must match the row dimension of matrixB.

matrixAmatrixB

Multiplying a matrix by a value or a value by a matrix returns a matrix in which each element of matrix is multiplied by value.

matrixvalue valuematrix

L (Negation) Negating a matrix () returns a matrix in which the sign of every element is changed (reversed).

Lmatrix

abs( (absolute value, MATH NUM menu) returns a matrix containing the absolute value of each element of matrix. abs(matrix)
round( (MATH NUM menu) returns a matrix. It rounds every element in matrix to #decimals ( 9). If #decimals is omitted, the elements are rounded

to 10 digits.

round(matrix[,#decimals])
Use the L1 function () to invert a matrix (^L1 is not valid). matrix must be square. The determinant cannot equal zero.

matrixL1

Powers To raise a matrix to a power, matrix must be square. You can use 2 (), 3 (MATH menu), or ^power () for integer power between 0 and 255.
matrix2 matrix3 matrix^power

When you use two lists with a two-argument function, the dimension of each list must be the same. The function is evaluated for corresponding elements.
When you use a list and a value with a two-argument function, the value is used with each element in the list.

LIST OPS Menu

LIST OPS Menu To display the LIST OPS menu, press y 9 ~.
NAMES OPS 1: SortA( 2: SortD( 3: dim( 4: Fill( 5: seq( 6: cumSum( 7: @List( 8: Select( 9: augment( 0: List4matr( A: Matr4list( B: MATH
Sorts lists in ascending order. Sorts lists in descending order. Sets the list dimension. Fills all elements with a constant. Creates a sequence. Returns a list of cumulative sums. Returns difference of successive elements. Selects specific data points. Concatenates two lists. Stores a list to a matrix. Stores a matrix to a list. Designates the list-name data type.

SortA(, SortD(

SortA( (sort ascending) sorts list elements from low to high values. SortD( (sort descending) sorts list elements from high to low values.
Complex lists are sorted based on magnitude (modulus).

TI-83 Plus Lists 299

With one list, SortA( and SortD( sort the elements of listname and update the list in memory.
SortA(listname) SortD(listname)
With two or more lists, SortA( and SortD( sort keylistname, and then sort each dependlist by placing its elements in the same order as the corresponding elements in keylistname. All lists must have the same dimension.
SortA(keylistname,dependlist1[,dependlist2,.,dependlist n]) SortD(keylistname,dependlist1[,dependlist2,.,dependlist n])
Note: In the example, 5 is the first element in L4, and 1 is the first element in L5. After SortA(L4,L5), 5 becomes the second element of L4, and likewise, 1 becomes the second element of L5. Note: SortA( and SortD( are the same as SortA( and SortD( on the STAT EDIT menu (Chapter 12).

TI-83 Plus Lists 300

Using dim( to Find List Dimensions
dim( (dimension) returns the length (number of elements) of list. dim(list)
Using dim( to Create a List You can use dim( with to create a new listname with dimension length from 1 to 999. The elements are zeros.

length!dim(listname)

Using dim( to Redimension a List You can use dim with to redimension an existing listname to dimension length from 1 to 999. The elements in the old listname that are within the new dimension are not changed. Extra list elements are filled by 0. Elements in the old list that are outside the new dimension are deleted.

Lists 301

Fill( replaces each element in listname with value. Fill(value,listname)

and to deselect functions. 7. Press y , 1 to select 1:Plot1 from the STAT PLOTS menu. The stat plot editor is displayed for plot 1.
8. Press to select On, which turns on plot 1. Press to select " (scatter plot). Press y d to specify Xlist:L1 for plot 1. Press y e to specify Ylist:L2 for plot 1. Press ~ to select + as the Mark for each data point on the scatter plot. 9. Press q 9 to select 9:ZoomStat from the ZOOM menu. The window variables are adjusted automatically, and plot 1 is displayed. This is a scatter plot of the time-versus-length data.
Since the scatter plot of time-versus-length data appears to be approximately linear, fit a line to the data. 10. Press ~ 4 to select 4:LinReg(ax+b) (linear regression model) from the STAT CALC menu. LinReg(ax+b) is pasted to the home screen.
11. Press y d y e. Press ~ 1 to display the VARS Y.VARS FUNCTION secondary menu, and then press 1 to select 1:Y1. L1, L2, and Y1 are pasted to the home screen as arguments to LinReg(ax+b). 12. Press to execute LinReg(ax+b). The linear regression for the data in L1 and L2 is calculated. Values for a and b are displayed on the home screen. The linear regression equation is stored in Y1. Residuals are calculated and stored automatically in the list name RESID, which becomes an item on the LIST NAMES menu. 13. Press s. The regression line and the scatter plot are displayed.
The regression line appears to fit the central portion of the scatter plot well. However, a residual plot may provide more information about this fit.
14. Press 1 to select 1:Edit. The stat list editor is displayed. Press ~ and } to move the cursor onto L3. Press y 6. An unnamed column is displayed in column 3; L3, L4, L5, and L6 shift right one column. The Name= prompt is displayed in the entry line, and alpha-lock is on. 15. Press y 9 to display the LIST NAMES menu. If necessary, press to move the cursor onto the list name RESID. 16. Press to select RESID and paste it to the stat list editors Name= prompt.
17. Press. RESID is stored in column 3 of the stat list editor. Press repeatedly to examine the residuals. Notice that the first three residuals are negative. They correspond to the shortest pendulum string lengths in L1. The next five residuals are positive, and three of the last four are negative. The latter correspond to the longer string lengths in L1. Plotting the residuals will show this pattern more clearly. 18. Press y , 2 to select 2:Plot2 from the STAT PLOTS menu. The stat plot editor is displayed for plot 2.
19. Press to select On, which turns on plot 2. Press to select " (scatter plot). Press y d to specify Xlist:L1 for plot 2. Press [R] [E] [S] [I] [D] (alpha-lock is on) to specify Ylist:RESID for plot 2. Press to select as the mark for each data point on the scatter plot.
20. Press o to display the Y= editor. Press | to move the cursor onto the = sign, and then press to deselect Y1. Press } to turn off plot 1. 21. Press q 9 to select 9:ZoomStat from the ZOOM menu. The window variables are adjusted automatically, and plot 2 is displayed. This is a scatter plot of the residuals. Notice the pattern of the residuals: a group of negative residuals, then a group of positive residuals, and then another group of negative residuals. The residual pattern indicates a curvature associated with this data set for which the linear model did not account. The residual plot emphasizes a downward curvature, so a model that curves down with the data would be more accurate. Perhaps a function such as square root would fit. Try a power regression to fit a function of the form y = a xb. 22. Press o to display the Y= editor. Press to clear the linear regression equation from Y1. Press } to turn on plot 1. Press ~ to turn off plot 2.

TI-83 Plus Applications 477
RANGER Selecting the RANGER data collection method runs the CBR RANGER program, a customized program especially for the TI-83 Plus that makes it compatible with the CBR. When the collection process is halted, the CBR RANGER is deleted from RAM. To run the CBR RANGER program again, press and select the CBL/CBR application.
Note: The Ranger data collection method only uses the Sonic probe.
1. Press b. 2. Select 3:RANGER.

3. Press b.

4. Select options.
For detailed information about the RANGER program as well as option explanations, see the Getting Started with CBR guidebook.
TI-83 Plus Applications 478

Starting Data Collection

Collecting the Data After you specify all of the options for your data collection method, select the Go option from the GAUGE or DATA LOGGER options screen. If you are using the RANGER data collection method, select 1:SETUPSAMPLE from the MAIN menu, and then START NOW. If DIRECTNS=Off, GAUGE and DATA LOGGER data collection begin immediately. If DIRECTNS=On, the calculator displays step-by-step directions.
If PROBE=Sonic, the calculator first displays a menu screen asking you to select 1:CBL or 2:CBR. This ensures that you get the appropriate directions. Press 1 to specify CBL 2/CBL or 2 to specify CBR. If you select START NOW from the MAIN menu of the RANGER data collection method, the calculator displays one directions screen. Press b to begin data collection.

Stopping Data Collection

To stop the GAUGE data collection method, press : on the TI-83 Plus. The DATA LOGGER and RANGER data collection methods stop after the specified number of samples have been collected. To stop them before this happens: 1. Press ^ on the TI-83 Plus. 2. Press on the CBR, T on the CBL 2, or P on the CBL. To exit from the GAUGE or DATA LOGGER option menus without beginning data collection, press - l. To exit from the RANGER option menu without beginning data collection, select MAIN menu. Select 6:QUIT to return to the CBLCBR APP menu. Press 4:QUIT from the CBLCBR APP menu to return to the TI-83 Plus Home screen.
Chapter 15: CATALOG, Strings, Hyperbolic Functions
Browsing the TI-83 Plus CATALOG
What Is the CATALOG? The CATALOG is an alphabetical list of all functions and instructions on the TI-83 Plus. You also can access each CATALOG item from a menu or the keyboard, except: The six string functions The six hyperbolic functions The solve( instruction without the equation solver editor (Chapter 2) The inferential stat functions without the inferential stat editors (Chapter 13)
Note: The only CATALOG programming commands you can execute from the home screen are GetCalc(, Get(, and Send(.
CATALOG, Strings, Hyperbolic Functions
Selecting an Item from the CATALOG To select a CATALOG item, follow these steps. 1. Press y CATALOG to display the CATALOG.

2. Press to display the STRING secondary menu.
Storing a String to a String Variable To store a string to a string variable, follow these steps. 1. Press [], enter the string, and press []. 2. Press. 3. Press 7 to display the VARS STRING menu. 4. Select the string variable (from Str1 to Str9, or Str0) to which you want to store the string.
The string variable is pasted to the current cursor location, next to the store symbol (!). 5. Press to store the string to the string variable. On the home screen, the stored string is displayed on the next line without quotation marks.
Displaying the Contents of a String Variable To display the contents of a string variable on the home screen, select the string variable from the VARS STRING menu, and then press. The string is displayed.
String Functions and Instructions in the CATALOG
Displaying String Functions and Instructions in the CATALOG String functions and instructions are available only from the CATALOG. The table below lists the string functions and instructions in the order in which they appear among the other CATALOG menu items. The ellipses in the table indicate the presence of additional CATALOG items.
CATALOG. Equ4String( expr(. inString(. length(. String4Equ( sub(.
Converts an equation to a string. Converts a string to an expression. Returns a characters place number. Returns a strings character length. Converts a string to an equation. Returns a string subset as a string.
+ (Concatenation) To concatenate two or more strings, follow these steps. 1. Enter string1, which can be a string or string name. 2. Press. 3. Enter string2, which can be a string or string name. If necessary, press and enter string3, and so on.

string1+string2+string3.

4. Press to display the strings as a single string.
Selecting a String Function from the CATALOG To select a string function or instruction and paste it to the current screen, follow the steps for selecting an item from the CATALOG.

Equ4String(

Equ4String( converts to a string an equation that is stored to any VARS variable. Yn contains the equation. Strn (from Str1 to Str9, or Str0)

Y.VARS

is the string variable to which you want the equation to be stored as a string.

Equ4String(Yn,Strn)

expr( converts the character string contained in string to an expression and executes it. string can be a string or a string variable. expr(string)

inString(

inString( returns the character position in string of the first character of substring. string can be a string or a string variable. start is an optional

3. Enter N=4 and B=6 to find the area (A) of a square with a distance (B) from center to vertex of 6 centimeters. 4. Press } } to move the cursor onto A, and then press \. The solution for A is displayed on the interactive solver editor.
5. Now solve for B for a given area with various number of sides. Enter A=200 and N=6. To find the distance B, move the cursor onto B, and then press \.
TI-83 Plus Activities 589
6. Enter N=8. To find the distance B, move the cursor onto B, and then press \. Find B for N=9, and then for N=10. Find the area given B=6, and N=10, 100, 150, 1000, and 10000. Compare your results with p62 (the area of a circle with radius 6), which is approximately 113.097. 7. Enter B=6. To find the area A, move the cursor onto A, and then press \. Find A for N=10, then N=100, then N=150, then N=1000, and finally N=10000. Notice that as N gets large, the area A approaches pB2. Now graph the equation to see visually how the area changes as the number of sides gets large. 8. Press z. Select the default mode settings. 9. Press p. Set the viewing window.
Xmin=0 Xmax=200 Xscl=10 Ymin=0 Ymax=150 Yscl=10 Xres=1
10. Press o. Turn off all functions and stat plots. Enter the equation for the area. Use X in place of N. Set the graph styles as shown.
11. Press r. After the graph is plotted, press 100 to trace to X=100. Press 150. Press 188. Notice that as X increases, the value of Y converges to p62, which is approximately 113.097. Y2=pB2 (the area of the circle) is a horizontal asymptote to Y1. The area of an N-sided regular polygon, with r as the distance from the center to a vertex, approaches the area of a circle with radius r (pr 2) as N gets large.
Computing and Graphing Mortgage Payments
Problem You are a loan officer at a mortgage company, and you recently closed on a 30-year home mortgage at 8 percent interest with monthly payments of 800. The new home owners want to know how much will be applied to the interest and how much will be applied to the principal when they make the 240th payment 20 years from now. Procedure 1. Press z and set the fixed-decimal mode to 2 decimal places. Set the other mode settings to the defaults. 2. Press to display the TVM Solver. Enter these values.

TI-83 Plus Communication Link 648
5. Press ~ on the sending TI-73 to display the LINK TRANSMIT menu. 6. Confirm that the receiving unit is set to receive. 7. Press on the sending TI-73 to select 1:Transmit and begin transmitting.

Backing Up RAM Memory

Warning: H:Back Up overwrites the RAM memory and mode settings in the receiving unit. All information in the RAM memory of the receiving unit is lost.
Note: Archived items on the receiving unit are not overwritten.
You can backup the contents of RAM memory and mode settings (no Flash applications or archived items) to another TI-83 Plus Silver Edition. You can also backup RAM memory and mode settings to a TI-83 Plus. To perform a RAM memory backup: 1. Use a unit-to-unit cable to link two TI-83 Plus Silver Edition units, or a TI-83 Plus Silver Edition and a TI-83 Plus together. 2. On the sending unit press y 8 and select H:Back Up. The MEMORYBACKUP screen displays.
3. On the receiving unit, press y 8 ~ to display the RECEIVE menu. 4. Press on the receiving unit.
TI-83 Plus Communication Link 650
5. Press on the sending unit. A WARNING Backup message displays on the receiving unit. 6. Press on the receiving unit to continue the backup. or Press 2:Quit on the receiving unit to cancel the backup and return to the LINK SEND menu
Note: If a transmission error is returned during a backup, the receiving unit is reset.
Memory Backup Complete When the backup is complete, both the sending calculator and receiving calculator display a confirmation screen.
A transmission error occurs after one or two seconds if: A cable is not attached to the sending unit. A cable is not attached to the receiving unit.
Note: If the cable is attached, push it in firmly and try again.
The receiving unit is not set to receive transmission. You attempt a backup between a TI-73, a TI-82, or a TI-83 and a TI-83 Plus. You attempt a data transfer from a TI-83 Plus to a TI-83, TI-82, or TI-73 with variables or features not recognized by the TI-83, TI-82, or TI-73. New variable types and features not recognized by the TI-83, TI-82, or TI-73 include applications, application variables, grouped variables, new variable types, or programs with new features in them such as Archive, UnArchive, SendID, SendOS, Asm(, AsmComp(, and AsmPrgm. You attempt a data transfer from a TI-83 Plus to a TI-82 with data other than real lists L1 through L6 or without using menu item 5:Lists to TI82.

Key or Keys/ Menu or Screen/Item

abs(complex value)

1:abs(

valueA and valueB

angle(value)

5:abs( y:

1:and
ANOVA(list1,list2 [,list3,.,list20]) Ans Archive

4:angle(

F:ANOVA( yZ yL 5:Archive yN Asm( yN AsmComp( yN AsmPrgm
Asm(assemblyprgmname) AsmComp(prgmASM1, prgmASM2) AsmPrgm
Function or Instruction/ Arguments augment(matrixA, matrixB) augment(listA,listB)
Result Returns a matrix, which is matrixB appended to matrixA as new columns. Returns a list, which is listB concatenated to the end of listA. Turns off the graph axes. Turns on the graph axes. Sets the mode to rectangular complex number mode (a+bi). Computes the balance at npmt for an amortization schedule using stored values for PV, , and PMT and rounds the computation to
Key or Keys/ Menu or Screen/Item y>

7:augment( y9

AxesOff AxesOn a+bi bal(npmt[,roundvalue])
9:augment( y. AxesOff y. AxesOn z a+bi 1:Finance

9:bal( y=

roundvalue.
binomcdf(numtria) Computes a cumulative probability at x for the discrete binomial distribution with the specified numtrials and probability p of success on each trial. Computes a probability at x for the discrete binomial distribution with the specified numtrials and probability p of success on each trial. A:binomcdf( y=

0:binompdf(

Function or Instruction/ Arguments c2cdf(lowerbound, upperbound,df)

c2.Test(observedmatrix,

expectedmatrix [,drawflag]) Circle(X,Y,radius)
Result Computes the c2 distribution probability between lowerbound and upperbound for the specified degrees of freedom df. Computes the probability density function (pdf) for the c2 distribution at a specified x value for the specified degrees of freedom df. Performs a chi-square test. drawflag=1 draws results; drawflag=0 calculates results. Draws a circle with center (X,Y) and radius. Clears the contents of the Last Entry storage area. Sets to 0 the dimension of all lists in memory. Clears all drawn elements from a graph or drawing. Clears the home screen.
Key or Keys/ Menu or Screen/Item y=

7:c2cdf( y=

6:c2pdf(

Eng Equ4String(Y= var,Strn) expr(string) ExpReg [Xlistname, Ylistname,freqlist,regequ]
7:End z Eng yN Equ4String( yN expr(
0:ExpReg y. ExprOff y. ExprOn y=
ExprOff ExprOn cdf(lowerbound, upperbound, numerator df, denominator df)

9:cdf(

Function or Instruction/ Arguments Fill(value,matrixname)
Result Stores value to each element in matrixname. Stores value to each element in listname. Sets fixed-decimal mode for # of decimal places. Sets floating decimal mode. Returns the value of variable where the local maximum of expression occurs, between lower and upper, with specified tolerance. Returns the value of variable where the local minimum of expression occurs, between lower and upper, with specified tolerance. Returns the function integral of expression with respect to variable, between lower and upper, with specified tolerance. Deselects all Y= functions or specified Y= functions.

Fill(value,listname)

4:Fill( y9
Float fMax(expression,variable, lower,upper[,tolerance])
4:Fill( z 0123456789 (select one) z Float

7:fMax(

fMin(expression,variable, lower,upper[,tolerance])

6:fMin(

fnInt(expression,variable, lower,upper[,tolerance])

9:fnInt(

Y-VARS On/Off
FnOff [function#, function#,.,function n]

2:FnOff

Function or Instruction/ Arguments FnOn [function#, function#,.,function n] :For(variable,begin,end [,increment]) :commands :End :commands fPart(value)
Result Selects all Y= functions or specified Y= functions. Executes commands through End, incrementing variable from begin by increment until variable>end.

1:FnOn

4:For(
pdf(x,numerator df, denominator df)

value4Frac

Full Func GarbageCollect
Returns the fractional part or parts of a real or complex number, expression, list, or matrix. Computes the distribution probability between lowerbound and upperbound for the specified numerator df (degrees of freedom) and denominator df. Displays a real or complex number, expression, list, or matrix as a fraction simplified to its simplest terms. Sets full screen mode. Sets function graphing mode. Displays the garbage collection menu to allow cleanup of unused archive memory.

4:fPart( y=

8:pdf(
1:4Frac z Full z Func yN GarbageCollect
Function or Instruction/ Arguments gcd(valueA,valueB)
Result Returns the greatest common divisor of valueA and valueB, which can be real numbers or lists. Computes a cumulative probability at x, the number of the trial on which the first success occurs, for the discrete geometric distribution with the specified probability of success p. Computes a probability at x, the number of the trial on which the first success occurs, for the discrete geometric distribution with the specified probability of success p. Gets data from the CBL 2/CBL or CBR System and stores it in variable. Gets contents of variable on another TI-83 Plus and stores it to variable on the receiving TI-83 Plus. Returns the key code for the current keystroke, or 0, if no key is pressed. Transfers control to label.

Y-VARS

(Function) FUNCTION 1:Y1 2:Y2 3:Y3 4:Y4. 9:Y9 0:Y0
(Parametric) (Polar) PARAMETRIC POLAR 1:X1T 1:r1 2:Y1T 2:r2 3:X2T 3:r3 4:Y2T 4:r4. 5:r5 A:X6T 6:r6 B:Y6T
(On/Off) ON/OFF 1:FnOn 2:FnOff
DISTR 1:normalpdf( 2:normalcdf( 3:invNorm( 4:tpdf( 5:tcdf( 6:c 2 pdf( 7:c 2 cdf( 8:pdf( 9:cdf( 0:binompdf( A:binomcdf( B:poissonpdf( C:poissoncdf( D:geometpdf( E:geometcdf(
DRAW 1:ShadeNorm( 2:Shade_t( 3:Shadec 2 ( 4:Shade(

1:Finance

2:CBL/CBR

Finance

CBL/CBR
CALC 1:TVM Solver 2:tvm_Pmt 3:tvm_ 4:tvm_PV 5:tvm_ 6:tvm_FV 7:npv( 8:irr( 9:bal( 0:GPrn( A:GInt( B:4Nom( C:4Eff( D:dbd( E:Pmt_End F:Pmt_Bgn
VARS 1: 2: 3:PV 4:PMT 5:FV 6:P/Y 7:C/Y
1:GAUGE 2:DATA LOGGER 3:CBR 4:QUIT
MEMORY 1:About 2:Mem Mgmt/Del 3:Clear Entries 4:ClrAllLists 5:Archive 6:UnArchive 7:Reset 8:Group
(Mem Mgmt/Del) RAM FREE 25631 ARC FREE 131069 1:All 2:Real 3:Complex 4:List 5:Matrix 6:Y-Vars 7:Prgm 8:Pic 9:GDB 0:String A:Apps B:AppVars C:Group

MEMORY (Reset)

RAM 1:All RAM 2:Defaults Resetting RAM erases all data and programs from RAM.
ARCHIVE 1:Vars 2:Apps B:Both Resetting Both erases all data, programs and Apps from Archive.

ALL 1:All Memory

Resetting ALL erases all data, programs and Apps from RAM and Archive.
RESET RAM 1:No 2:Reset Resetting RAM erases all data and programs from RAM.
RESET DEFAULTS 1:No 2:Reset

ARCHIVE

RESET ARC VARS 1:No 2:Reset Resetting Vars erases all data and programs from Archive.
RESET ARC APPS 1:No 2:Reset Resetting Apps erases all Apps from Archive.
RESET ARC BOTH 1:No 2:Reset Resetting Both erases all data, programs and Apps from Archive.
RESET MEMORY 1:No 2:Reset Resetting ALL will delete all data, programs & Apps from RAM & Archive.

MEMORY (GROUP.)

GROUP UNGROUP 1:Create New

MEMORY (UNGROUP.)

1:name 2:name.
CATALOG cosh( cosh L1(. Equ4String( expr(. inString(. length(. sinh( sinh L1(. String4Equ( sub(. tanh( tanh L1(

not equal to (), 101, 694 not( (Boolean operator), 104, 673 nPr (permutations), 93, 673 npv( (net present value), 453, 673 numerical derivative, 70, 152, 165, 175 numerical integral, 70, 153
Omit, 619, 645 ON/HALT, 480
one-proportion z confidence interval (1.PropZInt), 410, 676 one-proportion z test (1.PropZTest), 402, 676 one-sample t confidence interval (TInterval), 406, 687 one-variable statistics (1.Var Stats), 357, 689 or (Boolean) operator, 103, 673 order of evaluating equations, 47 Output(, 255, 530, 673 Overwrite, 619, 645 Overwrite All, 619

P4Rx(, P4Ry(

(polar-to-rectangular conversions), 100, 678 P/Y (number-of-payment-periods-peryear variable), 444, 463
panning, 136 (parametric graphing mode), 23, 674 parametric equations, 159 parametric graphing CALC (calculate operations on a graph), 165 defining and editing, 158, 159 free-moving cursor, 163 graph format, 161 graph styles, 159 moving the cursor to a value, 164 selecting and deselecting, 160 setting parametric mode, 158 tracing, 163 window variables, 160 Y= editor, 158 zoom operations, 165 parentheses, 48 path () graph style, 117 Pause, 518, 674 pausing a graph, 129 Pen, 232 permutations (nPr), 93, 673 phase plots, 197 Pi (p), 66 Pic (pictures), 239 pictures (Pic), 239 pixel, 237 pixels in Horiz/G.T modes, 238, 254

Par/Param 778

PLOT, 476 Plot1(, 373, 674 Plot2(, 373, 674 Plot3(, 373, 674 PlotsOff, 375, 675 PlotsOn, 375, 675
plotting modes, 23 plotting stat data, 368 PMT (payment amount variable), 444, 462 Pmt_Bgn (payment beginning variable), 461, 675 Pmt_End (payment end variable), 461, 675 poissoncdf(, 432, 675 poissonpdf(, 432, 675 Pol/Polar (polar graphing mode), 23, 168, 675 polar equations, 169 polar form, complex numbers, 87 polar graphing CALC (calculate operations on a graph), 175 defining and displaying, 168 equations, 169 free-moving cursor, 173 graph format, 171 graph styles, 169 mode (Pol/Polar), 23, 168, 675 moving the cursor to a value, 174
selecting and deselecting, 169 tracing, 173 window variables, 170 Y= editor, 168 ZOOM operations, 174 PolarGC (polar graphing coordinates), 126, 676 pooled option, 388, 391 power (^), 64, 695 power of ten (10^(), 65, 695 present value, 444, 450 previous entry (Last Entry), 33 prgm (program name), 522, 676 PRGM CTL (program control menu), 511 PRGM EDIT menu, 510 PRGM EXEC menu, 510 PRGM I/O (Input/Output menu), 525 PRGM NEW menu, 500 probability, 92 probability density function (normalpdf(), 425, 673 probe, 468 prod( (product), 313, 676 programming copying and renaming, 509 creating new, 500 defined, 500 deleting, 501 deleting command lines, 508

TI-83 Plus Science Tools Application

How to

Use Significant Figures Calculator Use Unit Converter Tool Use Data & Graphs Wizard Use Vector Calculator

Examples

Significant Figures: Rules Significant Figures: Add, Subtract, Multiply, Divide, Powers Unit Converter: Converting a Value Data/Graphs Wizard: Entering and Editing Data Data/Graphs Wizard: Plotting Data Vector Calculator: Creating a Vector Vector Calculator: Add, Subtract, and Multiply Vectors

More Information

Error Messages

(4/2/02)

Customer Support

2002 Texas Instruments

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Texas Instruments (TI) Support and Service Information

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E-mail: Phone:
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Page 87

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