xpfIsNAN

FUNCTION xpfIsNAN (realValue : REAL)
                   isNAN     : BOOLEAN;
                

Function to test if the specified REAL value is "not a number" (NAN) The function returns TRUE if the actual REAL value is NAN, else FALSE is returned.

Arguments


 

REAL

realValue

The value of a real number

Return Value


 

BOOLEAN

isNAN

TRUE if the given real value does not represent a real number

Options


   

 

Example


<example missing>

 

See also

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