Variables are character names to which are associated values.
You get access to the value by using the name. The following commands
are used in VISTA to manipulate variables:
- SET
- sets the value of a variable, either directly or in
terms of arithmetic operations on other variables.
- TYPE
- displays the value of a variable or any arithmetic
expression.
- ASK
- asks for information to be entered at the terminal.
- PRINTF
- formatted printing of variable values and character
strings.
- STRING
- definition of string variables.