FLINT3.7.0-dev

fmpz_mat_is_hadamard

Synopsis#include <flint/fmpz_mat.h>
int fmpz_mat_is_hadamard(const fmpz_mat_t A)source

Returns 1 if AA is a Hadamard matrix (a square matrix with entries ±1\pm 1 and AAT=nIAA^T = nI) and 0 otherwise.

Cite this page

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