Texas Instruments TITANIUM TI-89 User Manual

Page 619

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Programming

619

Input Commands

Input Commands

Input Commands

Input Commands

To see a submenu that lists additional
commands, select

1:Dialog

.

Command

Description

getKey

Returns the key code of the next key pressed. See the
Technical Reference module for a listing of key codes.

Input

Prompts the user to enter an expression. The expression is
treated according to how it is entered. For example:

A numeric expression is treated as an expression.

An expression enclosed in "quotes" is treated as a string.

Input can also display the Graph screen and let the user
update the variables xc and yc (rc and

q

c in polar mode) by

positioning the graph cursor.

InputStr

Prompts the user to enter an expression. The expression is
always treated as a string; the user does not need to enclose
the expression in "quotes".

PopUp

Displays a pop-up menu box and lets the user select an
item.

Prompt

Prompts the user to enter a series of expressions. As with
Input, each expression is treated according to how it is
entered.

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