CHISL(3F)
CHISL - CHISL solves the complex Hermitian system A * X = B using the factors computed by CHIFA.
As shipped in IRIX 6.5.15. Unchanged since IRIX 6.5.
NAME CHISL - CHISL solves the complex Hermitian system A * X = B using the factors computed by CHIFA. SYNOPSYS SUBROUTINE CHISL(A,LDA,N,KPVT,B) DESCRIPTION On Entry A COMPLEX(LDA,N) the output from CHIFA. LDA INTEGER the leading dimension of the array A . N INTEGER the order of the matrix A . KVPT INTEGER(N) the pivot vector from CHIFA. B COMPLEX(N) the right hand side vector. On Return B the solution vector X . Error Condition A division by zero may occur if CHICO has set RCOND .EQ. 0.0 or CHIFA has set INFO .NE. 0 . To compute INVERSE(A) * C where C is a matrix with P columns CALL CHIFA(A,LDA,N,KVPT,INFO) IF (INFO .NE. 0) GO TO ... DO 10 J = 1, p CALL CHISL(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,CDOTC Fortran CONJG,IABS