|LUSolve(TransposeOperation, Int32, Int32, Array2DComplexT, Array1DInt32, Array2DComplexT, Int32)|
ZGETRS solves a system of linear equations
A * X = B or A' * X = B
with a general N-by-N matrix A using the LU decomposition computed
TRANS (input) CHARACTER*1
Specifies the form of the system of equations:
= 'N': A * X = B (No transpose)
= TransposeOperation.Transpose: A'* X = B (Transpose)
= 'C': A'* X = B (Conjugate transpose = Transpose)
N (input) INTEGER
The elementOrder of the matrix A. N >= 0.
NRHS (input) INTEGER
The number of right hand sides, i.e., the number of columns
of the matrix B. NRHS >= 0.
A (input) ZOUBLE PRECISION array, dimension (LDA,N)
The factors L and U from the decomposition A = P*L*U
as computed by ZGETRF.
LDA (input) INTEGER
The leading dimension of the array A. LDA >= Max(1,N).
IPIV (input) INTEGER array, dimension (N)
The pivot indexes from ZGETRF; for 1< =i< =N, row i of the
matrix was interchanged with row IPIVi.
B (input/output) ZOUBLE PRECISION array, dimension (LDB,NRHS)
On entry, the right hand side matrix B.
On exit, the solution matrix X.
LDB (input) INTEGER
The leading dimension of the array B. LDB >= Max(1,N).
info (output) INTEGER
= 0: successful exit
< 0: if info = -i, the i-th argument had an illegal value
(Overrides DecompositionOperationsTReal, TComplexLUSolve(TransposeOperation, Int32, Int32, Array2DTComplex, Array1DInt32, Array2DTComplex, Int32).)