...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards
...one of the most highly regarded and expertly designed C++ library projects in the world.
#include <boost/math/complex/acos.hpp>
template<class T> std::complex<T> acos(const std::complex<T>& z);
Effects: returns the inverse cosine of the complex number z.
Formula: