		Description
1:	Input	Enters a value or uses the cursor.
2:	Prompt	Prompts for entry of variable values.
3:	Disp	Displays text, value, or the home screen.
4:	DispGraph	Displays the current graph.
5:	DispTable	Displays the current table.
6:	Output(	Displays text at a specified position.
7:	getKey	Checks the keyboard for a keystroke.
8:	ClrHome	Clears the display.
9:	ClrTable	Clears the current table.
0:	GetCalc(	Gets a variable from another TI‑84 Plus CE.
A:	Get(	Gets a variable from a USB connected device. The device being used governs how to use this functionality.
B:	Send(	Sends a variable to a USB connected device. The device being used governs how to use this functionality.
C:	eval(	Returns an evaluated expression as a string with 8 significant digits.
D:	expr(	Converts the character string contained in string to an expression and executes it.
E:	toString(	Converts value to a string where value can be real, complex, an evaluated expression, list, or matrix.
F:	String4Equ(	.NEW

Note: Press Ã when a command is highlighted in a menu to use the syntax help for your programming.

These instructions control input to and output from a program during execution. They allow you to enter values and display answers during program execution.

To return to the program editor without selecting an item, press u.

Displaying a Graph with Input

Input without a variable displays the current graph. You can move the free-moving cursor, which updates X and Y (and R and q for PolarGC format). The pause indicator is on. Press Í to resume program execution.

Input

Program

Output

Storing a Variable Value with Input

Input with variable displays a ? (question mark) prompt during execution. variable may be a real number, complex number, list, matrix, string, or Y= function. During program execution, enter a value, which can be an expression, and then press Í. The value is evaluated and stored to variable, and the program resumes execution.

Input [variable]

You can display text or the contents of Strn (a string variable) of up to 26 characters as a prompt. During program execution, enter a value after the prompt and then press Í. The value is stored to variable, and the program resumes execution.

Input ["text",variable]
Input [Strn,variable]

Program	Output

Note: When a program prompts for input of lists and Yn functions during execution, you must include the braces ( { } ) around the list elements and quotation marks ( " ) around the expressions.

Prompt

During program execution, Prompt displays each variable, one at a time, followed by =?. At each prompt, enter a value or expression for each variable, and then press Í. The values are stored, and the program resumes execution.

Prompt variableA[,variableB,...,variable n]

Program	Output

Note: Y= functions are not valid with Prompt.

Disp

Displaying the Home Screen

Disp (display) without a value displays the home screen. To view the home screen during program execution, follow the Disp instruction with a Pause instruction.

Displaying Values and Messages

Disp with one or more values displays the value of each.

Disp [valueA,valueB,valueC,...,value n]

•

If value is a variable, the current value is displayed.

•

If value is an expression, it is evaluated and the result is displayed on the right side of the next line.

•

If value is text within quotation marks, it is displayed on the left side of the current display line. ! is not valid as text.

Program	Output

If Pause is encountered after Disp, the program halts temporarily so you can examine the screen. To resume execution, press Í.

Note: If a matrix or list is too large to display in its entirety, ellipses (...) are displayed in the last column, but the matrix or list cannot be scrolled. To scroll, use Pause value.

DispGraph

DispGraph (display graph) displays the current graph. If Pause is encountered after DispGraph, the program halts temporarily so you can examine the screen. Press Í to resume execution.

DispTable

DispTable (display table) displays the current table. The program halts temporarily so you can examine the screen. Press Í to resume execution.

Output(

Output( displays text or value on the current home screen beginning at row (1 through 10) and column (1 through 26), overwriting any existing characters.

Note: You may want to precede Output( with ClrHome.

Expressions are evaluated and values are displayed according to the current mode settings. Matrices are displayed in entry format and wrap to the next line. ! is not valid as text.

Output(row,column,"text")
Output(row,column,value)

Program	Output

For Output( on a Horiz split screen, the maximum value for row is 4.

getKey

getKey returns a number corresponding to the last key pressed, according to the key code diagram below. If no key has been pressed, getKey returns 0. Use getKey inside loops to transfer control, for example, when creating video games.

Program	Output
	Note: », Œ, ¼, and Í were pressed during program execution.

Program

Output

Note: », Œ, ¼, and Í were pressed during program execution.

Note: You can press É at any time during execution to break the program.

TI‑84 Plus CE Key Code Diagram

ClrHome, ClrTable

ClrHome (clear home screen) clears the home screen during program execution.

ClrTable (clear table) clears the values in the table during program execution.

GetCalc(

GetCalc( gets the contents of variable on another TI‑84 Plus CE and stores it to variable on the receiving TI‑84 Plus CE. variable can be a real or complex number, list element, list name, matrix element, matrix name, string, Y= variable, graph database, or picture.

GetCalc(variable[,portflag])

By default, the TI‑84 Plus CE uses the USB port if it is connected. If the USB cable is not connected, it uses the I/O port. If you want to specify either the USB or I/O port, use the following portflag numbers:

portflag=0 use USB port if connected;
portflag=1 use USB port;
portflag=2 use I/O port (Ignored when program runs on the TI-84 Plus CE.)

Note: GetCalc( does not work between TI-82 and TI‑83 Plus or a TI-82, TI‑84 Plus and TI‑84 Plus CE calculators.

Get(, Send(

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Get(

Get( Retrieves a value from a connected TI-Innovator™ Hub and stores the data to a variable on the receiving CE calculator.

Get(variable)

Notes:

•

Use GetCalc( to get data from another CE calculator.

•

You can access Get(, Send( and GetCalc( from the CATALOG to execute them from the home screen.

Program	Output

TI-Innovator™ Hub Tips:

Get( command definition is specific to the TI-8x calculator and the cable connection via DBus or USB. The CE calculator is USB connectivity only and here, Get( is designed for communication with the TI-Innovator™ Hub.

eval(

eval( returns an evaluated expression as a string with 8 significant digits. The expression must simplify to a real expression.

eval(expression)

Program	Output

TI-Innovator™ Hub Tips:

eval( may be used within a string in the Send( command. The evaluated expression replaces eval(expression) with the result as characters within the string.

For debugging purposes, using the command line Disp Ans immediately after a command line using Send( displays the complete string being sent.

See the HUB menu for TI-Innovator™ Hub details.

Program	Output: Using Disp Ans after Send( command line.

expr(

Converts the character string contained in string to an expression and executes the expression. string can be a string or a string variable.

expr(string)

Program	Output

toString(

Converts value to a string where value can be real, complex, an evaluated expression, list, or matrix. String value displays in classic format (0) following the mode setting AUTO/DEC or in decimal format (1).

toString(value[,format])

Program	Output

String4Equ(

String4Equ( converts string into an equation and stores the equation to Yn. string can be a string or string variable. String4Equ( is the inverse of Equ4String(.

String4Equ(string,Yn)

Program	Output

Program	Output
	Turns blue LED on for 5 seconds when sent to connected TI-Innovator™ Hub.