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Function rc_algebra_lup_decomp

• Defined in File algebra.h

Function Documentation

int rc_algebra_lup_decomp(rc_matrix_t A, rc_matrix_t *L, rc_matrix_t *U, rc_matrix_t *P)

Performs LUP decomposition on matrix A with partial pivoting.

Places the result in matrices L,U,&P. Matrix A remains untouched and the original contents of LUP (if any) are freed and LUP are resized appropriately.

Parameters

• A – [in] input matrix

• L – [out] lower triangular

• U – [out] upper triangular

• P – [out] permutation matrix

Returns

Returns 0 on success or -1 on failure.