Function lgamma

extern/half/include/half.hpp:2537–2537

Natural logarithm of gamma function. \param arg function argument \return natural logarith of gamma function for \a arg template typename enable ::type lgamma(T arg) { return functions::lgamma(arg); }

		/// \return natural logarith of gamma function for \a arg
//		template<typename T> typename enable<expr,T>::type lgamma(T arg) { return functions::lgamma(arg); }
		inline expr lgamma(half arg) { return functions::lgamma(arg); }
		inline expr lgamma(expr arg) { return functions::lgamma(arg); }

		/// Gamma function.