dbeta.f
DOUBLE PRECISION FUNCTION DBETA (A, B)
C***BEGIN PROLOGUE DBETA
C***PURPOSE Compute the complete Beta function.
C***LIBRARY SLATEC (FNLIB)
C***CATEGORY C7B
C***TYPE DOUBLE PRECISION (BETA-S, DBETA-D, CBETA-C)
C***KEYWORDS COMPLETE BETA FUNCTION, FNLIB, SPECIAL FUNCTIONS
C***AUTHOR Fullerton, W., (LANL)
C***DESCRIPTION
C
C DBETA(A,B) calculates the double precision complete beta function
C for double precision arguments A and B.
C
C***REFERENCES (NONE)
C***ROUTINES CALLED D1MACH, DGAMLM, DGAMMA, DLBETA, XERMSG
C***REVISION HISTORY (YYMMDD)
C 770601 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 900727 Added EXTERNAL statement. (WRB)
C***END PROLOGUE DBETA