47 #ifndef _GLIBCXX_TR1_BETA_FUNCTION_TCC
48 #define _GLIBCXX_TR1_BETA_FUNCTION_TCC 1
73 template<
typename _Tp>
79 #if _GLIBCXX_USE_C99_MATH_TR1
82 __bet = std::tr1::tgamma(__x)
83 / std::tr1::tgamma(__x + __y);
84 __bet *= std::tr1::tgamma(__y);
88 __bet = std::tr1::tgamma(__y)
89 / std::tr1::tgamma(__x + __y);
90 __bet *= std::tr1::tgamma(__x);
121 template<
typename _Tp>
125 #if _GLIBCXX_USE_C99_MATH_TR1
126 _Tp __bet = std::tr1::lgamma(__x)
127 + std::tr1::lgamma(__y)
128 - std::tr1::lgamma(__x + __y);
152 template<
typename _Tp>
157 _Tp __bet = (__x + __y) / (__x * __y);
159 unsigned int __max_iter = 1000000;
160 for (
unsigned int __k = 1; __k < __max_iter; ++__k)
162 _Tp __term = (_Tp(1) + (__x + __y) / __k)
163 / ((_Tp(1) + __x / __k) * (_Tp(1) + __y / __k));
183 template<
typename _Tp>
187 if (__isnan(__x) || __isnan(__y))
197 #endif // __GLIBCXX_TR1_BETA_FUNCTION_TCC