SLATEC Routines --- DFSPVD ---

*DECK DFSPVD
      SUBROUTINE DFSPVD (T, K, X, ILEFT, VNIKX, NDERIV)
C***BEGIN PROLOGUE  DFSPVD
C***SUBSIDIARY
C***PURPOSE  Subsidiary to DFC
C***LIBRARY   SLATEC
C***TYPE      DOUBLE PRECISION (BSPLVD-S, DFSPVD-D)
C***AUTHOR  (UNKNOWN)
C***DESCRIPTION
C
C   **** Double Precision Version of BSPLVD ****
C Calculates value and deriv.s of all B-splines which do not vanish at X
C
C  Fill VNIKX(J,IDERIV), J=IDERIV, ... ,K  with nonzero values of
C  B-splines of order K+1-IDERIV , IDERIV=NDERIV, ... ,1, by repeated
C  calls to DFSPVN
C
C***SEE ALSO  DFC
C***ROUTINES CALLED  DFSPVN
C***REVISION HISTORY  (YYMMDD)
C   780801  DATE WRITTEN
C   890531  Changed all specific intrinsics to generic.  (WRB)
C   890831  Modified array declarations.  (WRB)
C   890911  Removed unnecessary intrinsics.  (WRB)
C   891214  Prologue converted to Version 4.0 format.  (BAB)
C   900328  Added TYPE section.  (WRB)
C***END PROLOGUE  DFSPVD