Signal and silence signaling NaN. \param nan half-precision NaN value \return quiet NaN \exception FE_INVALID if \a nan is signaling NaN

GraphIndex

Raise domain error and return NaN. return quiet NaN \exception FE_INVALID

Raise floating-point exception. \param flags exceptions to raise \param cond condition to raise exceptions for

Check for NaN. See also:** Documentation for [std::isnan](https://en.cppreference.com/w/cpp/numeric/math/isnan). \param arg number to check \retval tr

Arc cosine function. This function is exact to rounding for all rounding modes. See also:** Documentation for [std::acos](https://en.cppreference.com

Nearest integer. See also:** Documentation for [std::round](https://en.cppreference.com/w/cpp/numeric/math/round). \param arg half to round \return ne