FLINT3.7.0-dev
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fq_mat_similarity

Synopsis#include <flint/fq_mat.h>
void fq_mat_similarity(fq_mat_t A, slong r, fq_t d, const fq_ctx_t ctx)

Replaces the square matrix A by P^{-1} A P, where P is the identity matrix with the entries in row r and every column j \notin \{r - 1, r\} replaced by d. Such transforms preserve the characteristic and minimal polynomials.

Cite this page

The FLINT team, “fq_mat_similarity (fq_mat.h),” FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev, 2026. https://flintlib.org/doc/fq_mat/fq_mat_similarity.html (generated 2026-10-20).