SRC/spotrs.f(3) Library Functions Manual SRC/spotrs.f(3) NAME SRC/spotrs.f SYNOPSIS Functions/Subroutines subroutine spotrs (uplo, n, nrhs, a, lda, b, ldb, info) SPOTRS Function/Subroutine Documentation subroutine spotrs (character uplo, integer n, integer nrhs, real, dimension( lda, * ) a, integer lda, real, dimension( ldb, * ) b, integer ldb, integer info) SPOTRS Purpose: !> !> SPOTRS solves a system of linear equations A*X = B with a symmetric !> positive definite matrix A using the Cholesky factorization !> A = U**T*U or A = L*L**T computed by SPOTRF. !> Parameters UPLO !> UPLO is CHARACTER*1 !> = 'U': Upper triangle of A is stored; !> = 'L': Lower triangle of A is stored. !> N !> N is INTEGER !> The order of the matrix A. N >= 0. !> NRHS !> NRHS is INTEGER !> The number of right hand sides, i.e., the number of columns !> of the matrix B. NRHS >= 0. !> A !> A is REAL array, dimension (LDA,N) !> The triangular factor U or L from the Cholesky factorization !> A = U**T*U or A = L*L**T, as computed by SPOTRF. !> LDA !> LDA is INTEGER !> The leading dimension of the array A. LDA >= max(1,N). !> B !> B is REAL array, dimension (LDB,NRHS) !> On entry, the right hand side matrix B. !> On exit, the solution matrix X. !> LDB !> LDB is INTEGER !> The leading dimension of the array B. LDB >= max(1,N). !> INFO !> INFO is INTEGER !> = 0: successful exit !> < 0: if INFO = -i, the i-th argument had an illegal value !> Author Univ. of Tennessee Univ. of California Berkeley Univ. of Colorado Denver NAG Ltd. Definition at line 109 of file spotrs.f. Author Generated automatically by Doxygen for LAPACK from the source code. LAPACK Version 3.12.0 SRC/spotrs.f(3)