assertEquals Precision
<p>I am confused regarding the delta/precision in <code>assertEquals</code>.
I understand that <code>0.034</code> will give me the precision for my division code, as shown below:</p>

<pre><code>public void testDivide() {
        assertEquals(3.0, Arithmetic.divide(12.0, 4.0), 0.0);
        assertEquals(3.3, Arithmetic.divide(10.0, 3.0), 0.034);

        //fail("Not yet implemented");
    }
</code></pre>

<p>However, I tried to change it to <code>0.03</code>, the test failed. On the other hand, when I change it to <code>0.04</code>, it succeeded, or even if I change it to <code>0.034444</code> and so forth, it will succeed.
May I know what does the number mean, and how do we use it?</p>