VAL returns a real value for numeric strings and zero for non-numeric strings and can check the value status of parameters (PENDING, DETERMINED, available)

Syntax

1. VAL(StrExpr$)
2. VAL("PENDING:ParName")
3. VAL("DETERMINED:ParName")
4. VAL("VALUE:ParName")

...

Examples

VAL("445.02")

returns

445.02

VAL("NullString")

returns

0

VAL("Qnowledge")

returns

0

VAL("PENDING:X")

returns

0 if 0 if X has a DETERMINED value and

1 if 1 if X has a PENDING value

VAL("DETERMINED:X")

returns

1 if 1 if X has a DETERMINED value and

0 if 0 if X has a PENDING value

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