# QVM: Quaternions, Vectors, Matrices

### rotate(quat,vec,scalar)

#include <boost/qvm/quat_operations.hpp>

    namespace qvm
    {
        //Only enabled if:
        //  is_quat<A>::value &&
        //  is_vec<B>::value && vec_traits<B>::dim==3
        template <class A,class B>
        void rotate( A & a, B const & axis, typename quat_traits<A>::scalar_type angle );
    }

#### Effects:

As if:

    a *= rot_quat(axis,angle);

See also: boost/qvm/quat_operations.hpp