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is_nan
Description
bool is_nan ( float val)Returns TRUE if val is 'not a number', like the result of acos(1.01).
See also is_finite() and is_infinite().
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is_nanDescriptionbool is_nan ( float val)Returns TRUE if val is 'not a number', like the result of acos(1.01). See also is_finite() and is_infinite(). | ||||||
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