Dawson Dawson_sub Erf Erfc Erfci Erfci_sub Erfi Erfi_sub Fresc Fresc_sub Fress Fress_sub

Erfi_sub() Sub Erfi_sub ( Ret As  Double, P As  Double, Optional Info As  Long  ) Error function erf(x) inverse (Subroutine version) Purpose Computes a value x such that p = erf(x), where p is the specified value of the error function. Parameters [out] Ret Value of x. [in] P Argument p. (-1 < P < 1) [out] Info (Optional) = 0: Successful exit. = -1: The argument P had an illegal value. (P <= -1 or P >= 1) = 1: Floating point range error. Reference boost/math/special_functions