@ -74,7 +74,13 @@ template<class T> struct Constants {
*/
static constexpr T tau();
static constexpr T e(); /**< @brief Euler's number */
/**
* @brief Euler's number
*
* @see @ref log(), @ref exp()
static constexpr T e();
static constexpr T sqrt2(); /**< @brief Square root of 2 */
static constexpr T sqrt3(); /**< @brief Square root of 3 */