dbvder.f
SUBROUTINE DBVDER (X, Y, YP, G, IPAR)
C***BEGIN PROLOGUE DBVDER
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Warning: this routine is not intended to be user-callable.
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C***SUBSIDIARY
C***PURPOSE Subsidiary to DBVSUP
C***LIBRARY SLATEC
C***TYPE DOUBLE PRECISION (BVDER-S, DBVDER-D)
C***AUTHOR Watts, H. A., (SNLA)
C***DESCRIPTION
C
C **********************************************************************
C NFC = Number of base solution vectors
C
C NCOMP = Number of components per solution vector
C
C 1 -- Nonzero particular solution
C INHOMO =
C 2 or 3 -- Zero particular solution
C
C 0 -- Inhomogeneous vector term G(X) identically zero
C IGOFX =
C 1 -- Inhomogeneous vector term G(X) not identically zero
C
C G = Inhomogeneous vector term G(X)
C
C XSAV = Previous value of X
C
C C = Normalization factor for the particular solution
C
C 0 ( if NEQIVP = 0 )
C IVP =
C Number of differential equations integrated due to
C the original boundary value problem ( if NEQIVP .GT. 0 )
C
C NOFST - For problems with auxiliary initial value equations,
C NOFST communicates to the routine DFMAT how to access
C the dependent variables corresponding to this initial
C value problem. For example, during any call to DFMAT,
C the first dependent variable for the initial value
C problem is in position Y(NOFST + 1).
C See example in SAND77-1328.
C **********************************************************************
C
C***SEE ALSO DBVSUP
C***ROUTINES CALLED (NONE)
C***COMMON BLOCKS DML8SZ, DMLIVP
C***REVISION HISTORY (YYMMDD)
C 750601 DATE WRITTEN
C 890831 Modified array declarations. (WRB)
C 890921 Realigned order of variables in certain COMMON blocks.
C (WRB)
C 891214 Prologue converted to Version 4.0 format. (BAB)
C 900328 Added TYPE section. (WRB)
C 910701 Corrected ROUTINES CALLED section. (WRB)
C 910722 Updated AUTHOR section. (ALS)
C 920618 Minor restructuring of code. (RWC, WRB)
C***END PROLOGUE DBVDER