function clone$7(a) {
    var out = new ARRAY_TYPE(6);
    out[0] = a[0];
    out[1] = a[1];
    out[2] = a[2];
    out[3] = a[3];
    out[4] = a[4];
    out[5] = a[5];
    return out;
  }
Creates a new mat2d initialized with values from an existing matrix

@param {ReadonlyMat2d} a matrix to clone
@returns {mat2d} a new 2x3 matrix