Function norm3

examples/pde/bhrt.cpp:133–135

* @brief Returns the euclidean norm for a cartesian vector with 3 coords * * @param vector * @return af::array */

 * @return af::array
 */
af::array norm3(const af::array& vector) {
    return af::sqrt(dot3(vector, vector));
}

/**
 * @brief Returns the normalized vector for a cartesian vector with 3 coords