FLINT3.7.0-dev
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gr_sinc, gr_sinc_pi

Synopsis#include <flint/gr_special.h>
int gr_sinc(gr_ptr res, gr_srcptr x, gr_ctx_t ctx)source
int gr_sinc_pi(gr_ptr res, gr_srcptr x, gr_ctx_t ctx)source

Set res to sinc⁡(x)=sin⁡(x)/x\operatorname{sinc}(x) = \sin(x)/x, respectively sin⁡(πx)/(πx)\sin(\pi x)/(\pi x), with the value 1 at x=0x = 0.

Cite this page

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