Note

This Mathematica notebook is from the WWW project A Visual Dictionary of Special Plane Curves. Copyright © 1995-2002 by Xah Lee. (http://xahlee.org/)

a sine surface

definition

Clear[mmax];
mmax = 4*Pi;
Plot3D[Sin[x]*Cos@y, {x, 0, mmax}, {y, 0, mmax}, 
      PlotPoints -> {30, 30}, 
      BoxRatios -> {mmax, mmax, 2}]