`radix_mul, radix_sqr`

Synopsis#include <flint/radix.h>

void radix_mul(nn_ptr res, nn_srcptr a, slong an, nn_srcptr b, slong bn, const radix_t radix)source

void radix_sqr(nn_ptr res, nn_srcptr a, slong an, const radix_t radix)source

Set $(\mathit{res}, \mathit{an} + \mathit{bn})$ to $ab$ , respectively $(\mathit{res}, 2\mathit{an})$ to $a^2$ . Requires $\mathit{an}, \mathit{bn} \ge 1$ ; res must not overlap the inputs. Both are calls to radix_mulmid with the full window (there is no special squaring code yet).

Guides#

Arithmetic in radix b^e

Cite this page

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

@misc{flint-doc-radix-radix-mul,
  author       = {{The FLINT team}},
  title        = {{radix\_mul, radix\_sqr (radix.h)}},
  howpublished = {FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev},
  year         = {2026},
  url          = {https://flintlib.org/doc/radix/radix_mul.html},
  note         = {Generated 2026-11-02}
}

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