color: rgb(51, 102, 255);">sin</span>(a); c=<span style="color: rgb(51, 102, 255);">cos</span>(a); d=<span style="color: rgb(51, 102, 255);">exp</span>(-a.*a);  <span style="font-style: italic;">% create new objects by applying operator on the initial linear one</span></pre>
The objects we have defined are 1D objects. In order to have them
appear in a 2D coordinate frame, one way is to simply assign a new axis
to each object, and then display them as a surface:<br>
<pre style="margin-left: 40px;">&gt;&gt; a