# ddaws.f

          DOUBLE PRECISION FUNCTION DDAWS (X)
    C***BEGIN PROLOGUE  DDAWS
    C***PURPOSE  Compute Dawson's function.
    C***LIBRARY   SLATEC (FNLIB)
    C***CATEGORY  C8C
    C***TYPE      DOUBLE PRECISION (DAWS-S, DDAWS-D)
    C***KEYWORDS  DAWSON'S FUNCTION, FNLIB, SPECIAL FUNCTIONS
    C***AUTHOR  Fullerton, W., (LANL)
    C***DESCRIPTION
    C
    C DDAWS(X) calculates the double precision Dawson's integral
    C for double precision argument X.
    C
    C Series for DAW        on the interval  0.          to  1.00000E+00
    C                                        with weighted error   8.95E-32
    C                                         log weighted error  31.05
    C                               significant figures required  30.41
    C                                    decimal places required  31.71
    C
    C Series for DAW2       on the interval  0.          to  1.60000E+01
    C                                        with weighted error   1.61E-32
    C                                         log weighted error  31.79
    C                               significant figures required  31.40
    C                                    decimal places required  32.62
    C
    C Series for DAWA       on the interval  0.          to  6.25000E-02
    C                                        with weighted error   1.97E-32
    C                                         log weighted error  31.71
    C                               significant figures required  29.79
    C                                    decimal places required  32.64
    C
    C***REFERENCES  (NONE)
    C***ROUTINES CALLED  D1MACH, DCSEVL, INITDS, XERMSG
    C***REVISION HISTORY  (YYMMDD)
    C   780401  DATE WRITTEN
    C   890531  Changed all specific intrinsics to generic.  (WRB)
    C   890531  REVISION DATE from Version 3.2
    C   891214  Prologue converted to Version 4.0 format.  (BAB)
    C   900315  CALLs to XERROR changed to CALLs to XERMSG.  (THJ)
    C   920618  Removed space from variable names.  (RWC, WRB)
    C***END PROLOGUE  DDAWS