zpbsl
zpbsl - (obsolete) section solve the linear system Ax = b for a symmetric positive definite
matrix A in banded storage, which has been Cholesky-factored by CPBCO or
CPBFA, and vectors b and x.
SUBROUTINE ZPBSL( A, LDA, N, NDIAG, B)
DOUBLE COMPLEX A(LDA,*), B(*)
INTEGER LDA, N, NDIAG
SUBROUTINE ZPBSL_64( A, LDA, N, NDIAG, B)
DOUBLE COMPLEX A(LDA,*), B(*)
INTEGER*8 LDA, N, NDIAG
#include <sunperf.h>
void zpbsl(doublecomplex *a, int lda, int n, int ndiag, doublecomplex *b);
void zpbsl_64(doublecomplex *a, long lda, long n, long ndiag, doublecomplex *b);
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* A (input)
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Cholesky factorization of the matrix A, as computed by CPBCO or CPBFA.
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* LDA (input)
-
Leading dimension of the array A as specified in a dimension or type
statement. LDA >= NDIAG + 1.
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* N (input)
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Order of the matrix A. N >= 0.
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* NDIAG (input)
-
Number of diagonals of matrix A. N-1 >= NDIAG >= 0 but if
N = 0 then NDIAG = 0.
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* B (input/output)
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On entry, the right-hand side vector b.
On exit, the solution vector x.