# QVM: Quaternions, Vectors, Matrices

### operator*=(quat,quat)

#include <boost/qvm/quat_operations.hpp>

    namespace boost
    {
        namespace qvm
        {
            //Only enabled if:
            //  is_quat<A>::value && is_quat<B>::value
            template <class A,class B>
            A & operator*=( A & a, B const & b );
        }
    }

#### Effects:

As if:

    A tmp(a);
    a = tmp * b;
    return a;

See also: boost/qvm/quat_operations.hpp | rotate(quat,vec,scalar) | rotate_x(quat,scalar) | rotate_y(quat,scalar) | rotate_z(quat,scalar)