Processing math: 4%
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Functions

int hal_ni_LU32f (float *src1, size_t src1_step, int m, float *src2, size_t src2_step, int n, int *info)
 
int hal_ni_LU64f (double *src1, size_t src1_step, int m, double *src2, size_t src2_step, int n, int *info)
 

Detailed Description

Performs LU decomposition of square matrix A=P*L*U (where P is permutation matrix) and solves matrix equation A*X=B. Function returns the sign of permutation P via parameter info.

Parameters
src1pointer to input matrix A stored in row major order. After finish of work src1 contains at least U part of LU decomposition which is appropriate for determainant calculation: det(A)=sign*\prod_{j=1}^{M}a_{jj}.
src1_stepnumber of bytes between two consequent rows of matrix A.
msize of square matrix A.
src2pointer to M\times N matrix B which is the right-hand side of system A*X=B. B stored in row major order. If src2 is null pointer only LU decomposition will be performed. After finish of work src2 contains solution X of system A*X=B.
src2_stepnumber of bytes between two consequent rows of matrix B.
nnumber of right-hand vectors in M\times N matrix B.
infoindicates success of decomposition. If *info is equals to zero decomposition failed, othervise *info is equals to sign.

Function Documentation

◆ hal_ni_LU32f()

int hal_ni_LU32f ( float *  src1,
size_t  src1_step,
int  m,
float *  src2,
size_t  src2_step,
int  n,
int *  info 
)
inline

◆ hal_ni_LU64f()

int hal_ni_LU64f ( double *  src1,
size_t  src1_step,
int  m,
double *  src2,
size_t  src2_step,
int  n,
int *  info 
)
inline