Calling one program from another – Texas Instruments TITANIUM TI-89 User Manual

Page 590

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Programming

590

Note:

Because x and y in the function are local, they are not affected by any existing x or

y variable.

Calling One Program from Another

One program can call another program as a subroutine. The subroutine can be external
(a separate program) or internal (included in the main program). Subroutines are useful
when a program needs to repeat the same group of commands at several different
places.

Function as called from the Home Screen

Function as defined in
the Program Editor

xroot(3,125)

:xroot(x,y)

:Func

:y^(1/x)

:EndFunc

x:125