REAL FUNCTION GAMMLN ( XX )
Argument Definitions (+ indicates altered content)
REAL               XX
Description
To be used, if the non-standard Fortran function erf does not exist on 
your machine 
 
    aus:  Numerical Recipes (FORTRAN) / Chapter 6. 
 
    6.1  FUNCTION GAMMLN 
    6.2  FUNCTION GAMMP   <6.2:GSER/6.2:GCF/6.1:GAMMLN> 
    6.2  FUNCTION GAMMQ   <6.2:GSER/6.2:GCF/6.1:GAMMLN> 
    6.2  SUBROUTINE GSER    <6.1:GAMMLN> 
    6.2  SUBROUTINE GCF     <6.1:GAMMLN> 
    6.2  FUNCTION ERF     <6.2:GAMMP/6.2:GSER/6.2:GCF/6.1:GAMMLN> 
    6.2  FUNCTION ERFC    <6.2.:GAMMP/6.2:GAMMQ/6.2:GSER/ 
                           6.2:GCF/6.1:GAMMLN> 
    6.2  FUNCTION ERFCC
Source file:erf.f
Intrinsic Functions Called
GENERIC            LOG
Local Variables (+ indicates altered content)
INTEGER           +J
REAL*8            +COF(6),    +FPF,       +HALF,      +ONE
REAL*8            +SER,       +STP,       +TMP,       +X

REAL FUNCTION GAMMP ( A, X )
Argument Definitions (+ indicates altered content)
REAL               A,          X
Source file:erf.f
External Functions and Subroutines Called
SUBROUTINE         GCF,        GSER
Local Variables (+ indicates altered content)
REAL               GAMMCF,     GAMSER,     GLN

REAL FUNCTION GAMMQ ( A, X )
Argument Definitions (+ indicates altered content)
REAL               A,          X
Source file:erf.f
External Functions and Subroutines Called
SUBROUTINE         GCF,        GSER
Local Variables (+ indicates altered content)
REAL               GAMMCF,     GAMSER,     GLN

SUBROUTINE GSER ( GAMSER, A, X, GLN )
Argument Definitions (+ indicates altered content)
REAL               A,         +GAMSER,    +GLN,        X
Source file:erf.f
Intrinsic Functions Called
GENERIC            ABS,        EXP,        LOG
External Functions and Subroutines Called
REAL               GAMMLN
Parameter Variables Used
INTEGER            ITMAX              (ITMAX = 100)
REAL               EPS                (EPS = 3.E-7)
Local Variables (+ indicates altered content)
INTEGER           +N
REAL              +AP,        +DEL,       +SUM

SUBROUTINE GCF ( GAMMCF, A, X, GLN )
Argument Definitions (+ indicates altered content)
REAL               A,         +GAMMCF,    +GLN,        X
Source file:erf.f
Intrinsic Functions Called
REAL               ALOG,       FLOAT
GENERIC            ABS,        EXP
External Functions and Subroutines Called
REAL               GAMMLN
Parameter Variables Used
INTEGER            ITMAX              (ITMAX = 100)
REAL               EPS                (EPS = 3.E-7)
Local Variables (+ indicates altered content)
INTEGER           +N
REAL              +A0,        +A1,        +AN,        +ANA
REAL              +ANF,       +B0,        +B1,        +FAC
REAL              +G,         +GOLD

REAL FUNCTION ERF ( X )
Argument Definitions (+ indicates altered content)
REAL               X
Source file:erf.f
External Functions and Subroutines Called
REAL               GAMMP

REAL FUNCTION ERFC ( X )
Argument Definitions (+ indicates altered content)
REAL               X
Source file:erf.f
External Functions and Subroutines Called
REAL               GAMMP,      GAMMQ

REAL FUNCTION ERFCC ( X )
Argument Definitions (+ indicates altered content)
REAL               X
Source file:erf.f
Intrinsic Functions Called
GENERIC            ABS,        EXP
Local Variables (+ indicates altered content)
REAL              +T,         +Z