Boost C++ Libraries of the most highly regarded and expertly designed C++ library projects in the world. Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

This is the documentation for an old version of boost. Click here for the latest Boost documentation.

QVM: Quaternions, Vectors, Matrices


#include <boost/qvm/quat_operations.hpp>

namespace boost
    namespace qvm
        //Only enabled if: is_quat<A>::value
        template <class A>
        typename deduce_quat<A>::type
        inverse( A const & a );


Computes the multiplicative inverse of a, or the conjugate-to-norm ratio.


If the magnitude of a is zero, throws zero_magnitude_error.


If a is known to be unit length, conjugate is equivalent to inverse, yet it is faster to compute.