`_fmpz_mat22_addmul_inv_vec, _fmpz_mat22_addmul_inv_mat`

Synopsis#include <flint/fmpq.h>

void _fmpz_mat22_addmul_inv_vec(fmpz_t ya, fmpz_t yb, _fmpz_mat22_t N, fmpz_t xa, fmpz_t xb)source

void _fmpz_mat22_addmul_inv_mat(fmpz_t A11, fmpz_t A12, fmpz_t A21, fmpz_t A22, _fmpz_mat22_t M, fmpz_t B11, fmpz_t B12, fmpz_t B21, fmpz_t B22)

source

Add $N^{-1}x$ to the vector $y$ , or $M^{-1}B$ to the matrix $A$ . The inputs xa, xb and $B$ may be overwritten.

Cite this page

The FLINT team, “_fmpz_mat22_addmul_inv_vec, _fmpz_mat22_addmul_inv_mat (fmpq.h),” FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev, 2026. https://flintlib.org/doc/fmpq/_fmpz_mat22_addmul_inv_vec.html (generated 2026-11-02).

@misc{flint-doc-fmpq-fmpz-mat22-addmul-inv-vec,
  author       = {{The FLINT team}},
  title        = {{\_fmpz\_mat22\_addmul\_inv\_vec, \_fmpz\_mat22\_addmul\_inv\_mat (fmpq.h)}},
  howpublished = {FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev},
  year         = {2026},
  url          = {https://flintlib.org/doc/fmpq/_fmpz_mat22_addmul_inv_vec.html},
  note         = {Generated 2026-11-02}
}

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