title: Surf 3D Matrix size issue
body: <p>currently i try to understand some code i got from my supervisor in college. My task is to create a 3D plot. I've got vector V.x with dimension 1x41 and a vector V.y with dimension 1x41 as well. Besides that i got a 3D Matrix E with the dimension 41x41x301. 
  I tried to use surf(V.x,V.y,E).
  I get an error because of the dimensions must agree. 
  Where is the Problem? Is it because of the "x301", because E is a 3D Matrix?
  If so, how can i fix it?
  My next thought was to transpose either V.x or V.y but i still dont have the 301.</p>
  
  <p>Sincerely
  Lucas </p>