Calculator User Manual

Chapter 16: Programming 440

While

WhileWhile

While

While performs a group of commands while condition is true. condition is frequently a

relational test (Chapter 2).

condition is tested when While is encountered. If condition is true

(nonzero), the program executes a group of

commands. End signifies the end of the group.

When

condition is false (zero), the program executes each command following End. While

instructions can be nested.

:While condition

:command (while condition is true)

:End

:command

Repeat

RepeatRepeat

Repeat

Repeat repeats a group of commands until condition is true (nonzero). It is similar to While,

but

condition is tested when End is encountered; therefore, the group of commands is

always executed at least once.

Repeat instructions can be nested.

:Repeat condition

:command (until condition is true)

Program Output