TI-Basic 84 Programming/Loops

For

For(, PRGM:CTL:4, is command used to perform a specific block of code a set number of times.

Syntax: For

:For(variable,starting number,stopping number,increment)
://code
://code
:End

• Variable is some numeric variable (Ex: X). Starting number is the variable will be set as in the beginning. Stopping number is the final number that the variable will be. Increment is the amount variable will go up or down after each run-through the loop; increment has a default of 1 and can be left off.

Ex: For

First Example

PROGRAM:TEMP
:For(X,0,3)
:Disp X
:End

prgmTEMP
           0
           1
           2
           3

Second Example

PROGRAM:TEMPA
:For(X,3,0,-1)
:Disp X
:End

prgmTEMPA
           3
           2
           1
           0

While

While, PGRM:CTL:5, is a command used to have a loop run as long as a specific condition is met.

Syntax: While

:While condition
://code
://code
:End

Ex: While

PROGRAM:TEMP
:X->0
:While X≥3
:Disp X
:X+1->X
:End

prgmTEMP
           0
           1
           2
           3