module.exports = identity

/**
 * Set a mat2 to the identity matrix
 *
 * @alias mat2.identity
 * @param {mat2} out the receiving matrix
 * @returns {mat2} out
 */
function identity(out) {
  out[0] = 1
  out[1] = 0
  out[2] = 0
  out[3] = 1
  return out
}