* Multiply each element of the matrix by a scalar. * * @param {mat3} out the receiving matrix * @param {mat3} a the matrix to scale * @param {Numb

* Adds two mat3's after multiplying each element of the second operand by a scalar value. * * @param {mat3} out the receiving vector * @param {mat3

* Negates the components of a vec2 * * @param {vec2} out the receiving vector * @param {vec2} a vector to negate * @returns {vec2} out

* Calculates a 3x3 normal matrix (transpose inverse) from the 4x4 matrix * * @param {mat3} out mat3 receiving operation result * @param {mat4} a Mat4

* @this {TouchInput} * @param {Object} ev * @param {Number} type flag * @returns {undefined|Array} [all, changed]

* @this {TouchInput} * @param {Object} ev * @param {Number} type flag * @returns {undefined|Array} [all, changed]

* @this {TouchInput} * @param {Object} ev * @param {Number} type flag * @returns {undefined|Array} [all, changed]

* Remove an event handler. Subclasses should override this method.

* Remove an event handler. Subclasses should override this method.

* Perform operator updates in response to events. Applies an * update function to compute a new operator value. If the update function * returns a {