@Test
    public void testAtan() {
        assertEquals(0.0f, FastMath.atan2(0.0f, 0.0f), 0.0f);
        assertEquals(0.076f, FastMath.atan2(1.0f, 13.0f), 0.01f);
    }
Verifies that algorithms in {@link FastMath} are working correctly.

@author Kirill Vainer
jme3-core/src/test/java/com/jme3/math/FastMathTest.java