));
    assertElementsRoughlyEqual(
        [-0.225, 0.025, 0.025, 0.275, 0.025, 0.025, 0.275, -0.225,
         0.025, 0.275, -0.225, 0.025, 0.275, -0.225, 0.025, 0.025], m0,
         goog.vec.EPSILON);

    goog.vec.Matrix4.makeScale(m0, .01, .01, .01);
    assertTrue(goog.vec.Matrix4.invert(m0, m0));
    var m1 = goog.vec.Matrix4.create();
    goog.vec.Matrix4.makeScale(m1, 100, 100, 100);
    assertElementsEquals(m1, m0);
  }

  function testEquals() {
    var m0 = goog.vec.Matrix4.createFromValues(
    