quarter_circle

eve::quarter_circle = {}

inlineconstexpr

Members Functions

auto operator()(eve::callable auto const& f ) const noexcept;

Parameters

f	An instance of eve::callable

Returns

A Callable Object performing the same kind of operation but gives the correct result in \([-\pi/4, +\pi/4]\) only and Nan outside. (respectively \([-45, +45]\) if the input in in degrees, \([-0.25, +0.25]\) if the input in in \(\pi\) multiples)