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Fixed documentation typo. Removed if statement that wasn't hit

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This commit is contained in:
Jacob Hass
2026-01-24 09:54:48 -08:00
parent 27c1f98fcf
commit 76c9c2bd38
2 changed files with 3 additions and 5 deletions
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4
doc/sf/igamma.qbk
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@@ -79,10 +79,10 @@ This function changes rapidly from 0 to 1 around the point z == a:
[graph gamma_p]
template <class T1, class T2>
BOOST_MATH_GPU_ENABLED ``__sf_result`` lgamma_q(T1 a, T2 z);
BOOST_MATH_GPU_ENABLED ``__sf_result`` lgamma_p(T1 a, T2 z);
template <class T1, class T2, class ``__Policy``>
BOOST_MATH_GPU_ENABLED ``__sf_result`` lgamma_q(T1 a, T2 z, const ``__Policy``&);
BOOST_MATH_GPU_ENABLED ``__sf_result`` lgamma_p(T1 a, T2 z, const ``__Policy``&);
Returns the natural log of the normalized lower incomplete gamma function
of a and z.

4
include/boost/math/special_functions/gamma.hpp
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@@ -1842,9 +1842,7 @@ BOOST_MATH_GPU_ENABLED T lgamma_incomplete_lower_imp(T a, T x, const Policy& pol
// we will lose precision in the result, selection logic here is extracted from gamma_incomplete_imp_final:
//
bool need_p = false;
if ((x < 0.5) && (T(-0.4) / log(x) < a))
need_p = true;
else if ((x < 1.1) && (x >= 0.5) && (x * 0.75f < a))
if ((x < 1.1) && (x >= 0.5) && (x * 0.75f < a))
need_p = true;
else if ((x < a) && (x >= 1.1))
need_p = true;