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Next: Example Up: Evaluate Statement Previous: Evaluate Statement

Syntax

EVALuate ($<$evaluate-statement$>$)
is a control statement.
$<$evaluate-statement$>$:==
$<$symbol$>$ = $<$operation$>$
$<$operation$>$:==
$<$vflc$>$ [$<$op$>$ $<$operation$>$ ]
$<$op$>$:==
$+$
denotes addition or concatenation for strings.
$-$
denotes subtraction or unary minus or negative concatenation for strings.
$*$
denotes multiplication.
$/$
denotes division.
^
denotes exponentiation.
$**$
denotes exponentiation (same as ^ ).
$<$vflc$>$:==
$<$function$>\vert<$symbol$>\vert<$real$>\vert<$integer$>\vert<$string$>$ deals with the fact that the data types of the operations and operands have to match; otherwise an error message is issued. The available functions, such as SIN, COS, and TAN, are defined in Section 2.16.


Xplor-NIH 2024-09-13