Texas Instruments TITANIUM TI-89 User Manual

Page 607

Programming

607

If Command

To execute only one command if a conditional test is true, use the general form:

Executed only if x>5; otherwise, skipped.

Always displays the value of x.

In this example, you must store a value to x before executing the

command.

Note:

Use indentation to make your programs easier to read and understand.

If...Then...EndIf Structures

To execute one group of commands if a conditional test is true, use the structure:

Executed only if x>5.

Displays value of:

• 2x if x>5
• x if x

{

:If x>5

: Disp "x is greater than 5"

:Disp x

:If x>5 Then

: Disp "x is greater than 5"

: 2

†

:EndIf

:Disp x