FLINT3.7.0-dev
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_fmpz_mod_poly_mulmid, fmpz_mod_poly_mulmid

Synopsis#include <flint/fmpz_mod_poly.h>
void _fmpz_mod_poly_mulmid(fmpz * res, const fmpz * poly1, slong len1, const fmpz * poly2, slong len2, slong nlo, slong nhi, const fmpz_mod_ctx_t ctx)source
void fmpz_mod_poly_mulmid(fmpz_mod_poly_t res, const fmpz_mod_poly_t poly1, const fmpz_mod_poly_t poly2, slong nlo, slong nhi, const fmpz_mod_ctx_t ctx)source

Set res to the coefficients of index nlo≤i<nhi\mathit{nlo} \le i < \mathit{nhi} of the product, that is, to ((poly1⋅poly2) mod xnhi)/xnlo((\mathit{poly1} \cdot \mathit{poly2}) \bmod x^{\mathit{nhi}}) / x^{\mathit{nlo}}. The underscore version requires positive lengths and 0≤nlo<nhi≤len1+len2−10 \le \mathit{nlo} < \mathit{nhi} \le \mathit{len1} + \mathit{len2} - 1, writes nhi−nlo\mathit{nhi} - \mathit{nlo} coefficients and does not allow aliasing.

Cite this page

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