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lgamma_q: correct PP logic.

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jzmaddock
2026-01-08 15:56:12 +00:00
parent ce9aba42a8
commit c366b2d905
1 changed files with 3 additions and 3 deletions
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6
test/test_igamma.hpp
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@@ -263,12 +263,12 @@ void test_spots(T, const char* name = nullptr)
BOOST_CHECK_CLOSE(::boost::math::lgamma_q(static_cast<T>(501.25), static_cast<T>(2000)), static_cast<T>(-810.2453406781655559126505101822969531699112391075198076300675402L), tolerance);
BOOST_CHECK_CLOSE(::boost::math::lgamma_q(static_cast<T>(20), static_cast<T>(0.25)), static_cast<T>(-2.946458104491857816330873290969917497748067639461638294404e-31L), tolerance);
BOOST_CHECK_CLOSE(::boost::math::lgamma_q(static_cast<T>(40), static_cast<T>(0.75)), static_cast<T>(-5.930604927955460343652485525435087275997461623988991819824e-54L), tolerance);
BOOST_CHECK_CLOSE(::boost::math::lgamma_q(static_cast<T>(50), static_cast<T>(2)), static_cast<T>(-5.214301903317168085381693412994550732094621576607843973832e-51L),
#if defined(__CYGWIN__) || defined(__MINGW32__)
tolerance * 2);
T gcc_win_mul = 2;
#else
tolerance);
T gcc_win_mul = 1;
#endif
BOOST_CHECK_CLOSE(::boost::math::lgamma_q(static_cast<T>(50), static_cast<T>(2)), static_cast<T>(-5.214301903317168085381693412994550732094621576607843973832e-51L), tolerance * gcc_win_mul);
BOOST_CHECK_CLOSE(::boost::math::lgamma_q(static_cast<T>(500), static_cast<T>(10)), static_cast<T>(-3.79666711621207197039397438773960431648625558027046365463e-639L), tolerance * 3);
BOOST_CHECK_CLOSE(::boost::math::lgamma_q(static_cast<T>(5), static_cast<T>(1000)), static_cast<T>(-975.5430287171020511929200293377669175923128826278957569928895945L), tolerance);
// Pairs of tests that bisect the crossover condition in our code at double and then quad precision: