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Home > Floating-point support > gamma(), gamma_r() |

These functions both compute the logarithm of the gamma function.They
are synonyms for `lgamma`

and `lgamma_r`

.

double gamma(double x); double gamma_r(double x, int *);

Despite their names, these functions compute the logarithm of the gamma function, not the gamma function itself.

These functions are deprecated.

- Reference
*ARM C and C++ Libraries and Floating-Point Support User Guide*: