D1num D1num_sub IsFinite IsFinite_sub IsInf IsInf_sub IsNan IsNan_sub IsNormal IsNormal_sub Signbit Signbit_sub

IsInf_sub() Sub IsInf_sub ( Ret As  Boolean, X As  Double  ) Determine if infinite value (Subroutine version) Purpose Determines if the given argument has infinite value with positive or negative sign. Parameters [out] Ret If X has infinite value, True is returned. Otherwise, False is returned. [in] X Argument to be examined.