Function acos

extern/half/include/half.hpp:2449–2449

Arc cosine function. \param arg function argument \return arc cosine value of \a arg template typename enable ::type acos(T arg) { return functions::acos(arg); }

		/// \return arc cosine value of \a arg
//		template<typename T> typename enable<expr,T>::type acos(T arg) { return functions::acos(arg); }
		inline expr acos(half arg) { return functions::acos(arg); }
		inline expr acos(expr arg) { return functions::acos(arg); }

		/// Arc tangent function.