Gamma: Version 4.0
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and, not, or

and, not, or --  are the same as the corresponding Logical Operators.

Syntax


and (!condition[,!condition]...)
not (condition)
or (!condition[,!condition]...)

Arguments

condition

Any Gamma or Lisp expression.

Returns

Non-nil or nil.

Examples

    Gamma> not(6);
    nil
    Gamma> not(nil);
    t
    
    Gamma> and(5<6,string("hi ","there"));
    "hi there"
    Gamma> and(5>6,string("hi ","there"));
    nil
    
    Gamma> x = 5;
    5
    Gamma> y = 6;
    6
    Gamma> or(x == 3, y == 0);
    nil
    Gamma> or(x == 3, y == 6);
    t
    Gamma>

See Also

Logical Operators

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acos, asin, atan, atan2Upband, bnot, bor, bxor

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