Today we will plot some simple surfaces over rectangular regions in the xy-plane. You should consult section 4.2 of the Matlab introduction notes.

Assignment:

1. Plot the following surfaces using the ezsurf command over the domain -10<x,y<10

 
 

In each case, you can move the image around to see it from different angles with the mouse. This is achieved by ``click and drag''. Ask a tutor or friend if you do not know how to do this. If time allows, you might try plotting the above surfaces over different domains.

2.  Plot

 
 

over the region 0 < x < 10 and -3 < y < 5.
 

3.    Recall that a surface may also be given in the parameterized form