`mag_get_d_log2_approx`

Synopsis#include <flint/mag.h>

double mag_get_d_log2_approx(const mag_t x)source

Returns an approximation of $\log_2 x$ , clamped to $[\mathrm{COEFF\_MIN}, \mathrm{COEFF\_MAX}]$ , for estimating magnitudes. It is not a rigorous bound.

Cite this page

The FLINT team, “mag_get_d_log2_approx (mag.h),” FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev, 2026. https://flintlib.org/doc/mag/mag_get_d_log2_approx.html (generated 2026-11-02).

@misc{flint-doc-mag-mag-get-d-log2-approx,
  author       = {{The FLINT team}},
  title        = {{mag\_get\_d\_log2\_approx (mag.h)}},
  howpublished = {FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev},
  year         = {2026},
  url          = {https://flintlib.org/doc/mag/mag_get_d_log2_approx.html},
  note         = {Generated 2026-11-02}
}

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