
After execution of CHOOSE, the value of N will be updated to contain 0, 1, 2, or 3. The IF THEN ELSE
command causes the name of the selected person to be printed to the terminal.
EDITLIST
Syntax: EDITLIST(listvar)
Starts the List Editor loading listvar and displays the specied list. If used in programming, returns to the
program when user taps
.
Example: EDITLIST(L1) edits list L1.
EDITMAT
Syntax: EDITMAT(matrixvar)
Starts the Matrix Editor and displays the specied matrix. If used in programming, returns to the program
when user taps .
Example: EDITMAT(M1) edits matrix M1.
GETKEY
Syntax: GETKEY
Returns the ID of the rst key in the keyboard buer, or –1 if no key was pressed since the last call to GETKEY.
Key IDs are integers from 0 to 50, numbered from top left (key 0) to bottom right (key 50) as shown in gure
27-1.
Program commands 607
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