CSISL man page on IRIX

CSISL man page on IRIX

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CSISL(3F)							     CSISL(3F)

NAME
     CSISL   - CSISL solves the complex symmetric system A * X = B using the
     factors computed by CSIFA.

SYNOPSYS
      SUBROUTINE CSISL(A,LDA,N,KPVT,B)

DESCRIPTION
     On Entry

     A COMPLEX(LDA,N)
	the output from CSIFA.

     LDA INTEGER
	the leading dimension of the array  A .

     N INTEGER
	the order of the matrix	 A .  KVPT    INTEGER(N)
	the pivot vector from CSIFA.

     B COMPLEX(N)
	the right hand side vector.  On Return

     B the solution vector  X . Error Condition

     A division by zero may occur if  CSICO  has set RCOND .EQ. 0.0 or	CSIFA
     has set INFO .NE. 0  .  To compute	 INVERSE(A) * C	 where	C  is a matrix
     with  P  columns
	CALL CSIFA(A,LDA,N,KVPT,INFO)
	If (INFO .NE. 0) GO TO ...
	DO 10 J = 1, P
	CALL CSISL(A,LDA,N,KVPT,C(1,j)) 10 CONTINUE LINPACK.  This version
     dated 08/14/78 .  James Bunch, Univ. Calif. San Diego, Argonne Nat. Lab.
     Subroutines and Functions BLAS CAXPY,CDOTU Fortran IABS

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