What is the meaning of `-1.$e+000`?
<p>What is the meaning of the symbol <code>-1.$e+000</code>? In what category are these kind of things included or with what keywords I can search them?</p>

<p><img src="http://i.stack.imgur.com/fy2bS.png" alt="enter image description here"></p>

<p><strong>EDIT</strong>: After increasing precision this is what I got:</p>

<p><img src="http://i.stack.imgur.com/DtdP3.png" alt="enter image description here"></p>
