The utility variable can be substituted wherever substitution is allowed.
If the expression evaluates to a numeric value, the symbol is assigned an integer value, as in:
.SET FOONUM TO -151 ;
If the expression is a quoted string, the symbol is assigned a string value, as in:
.SET FOOCHAR TO '-151' ;
The minimum and maximum limits for Floating Point data types are as follows:
4.0E-75 <=abs(float variable)<7.0E75