Function m4ri_sys::mzd_pluq_solve_left

pub unsafe extern "C" fn mzd_pluq_solve_left(
    a: *const Mzd, 
    rank: Rci, 
    p: *const Mzp, 
    q: *const Mzp, 
    b: *mut Mzd, 
    cutoff: c_int, 
    inconsistency_check: c_int
) -> c_int

Solves (P L U Q) X = B

A is an input matrix supposed to store both:

• an upper right triangular matrix U
• a lower left unitary triangular matrix L.

The solution X is stored inplace on B

This version assumes that the matrices are at an even position on the m4ri_radix grid and that their dimension is a multiple of m4ri_radix.

param A Input upper/lower triangular matrices. param rank is rank of A. param P Input row permutation matrix. param Q Input column permutation matrix. param B Input matrix, being overwritten by the solution matrix X. param cutoff Minimal dimension for Strassen recursion (default: 0). param inconsistency_check decide whether or not to perform a check for incosistency (faster without but output not defined if system is not consistent).

return 0 if a solution was found, -1 otherwise