@Test
	public void testCosDegrees() {
		double cos = SundialCalculations.cosDegrees(0);
		assertEquals(1, cos, 0);
		cos = SundialCalculations.cosDegrees(45);
		assertEquals(0.707, cos, 0.001);
		cos = SundialCalculations.cosDegrees(90);
		assertEquals(0, cos, 0.001);
	}