`mag_set_d, mag_set_ui, mag_set_fmpz`

Synopsis#include <flint/mag.h>

void mag_set_d(mag_t res, double x)source

void mag_set_ui(mag_t res, ulong x)source

void mag_set_fmpz(mag_t res, const fmpz_t x)source

Set res to an upper bound for $|x|$ . The result can be larger than $|x|$ even when $|x|$ is representable: mag_set_d always adds one unit in the 30th bit. A NaN double gives $+\infty$ .

Guides#

Using acb_hypgeom (acb_hypgeom)
Computing bounds with mag

Cite this page

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

@misc{flint-doc-mag-mag-set-d,
  author       = {{The FLINT team}},
  title        = {{mag\_set\_d, mag\_set\_ui, mag\_set\_fmpz (mag.h)}},
  howpublished = {FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev},
  year         = {2026},
  url          = {https://flintlib.org/doc/mag/mag_set_d.html},
  note         = {Generated 2026-11-02}
}

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