I'm using v7 standard. I prefer to plot the surface f(x,y) using x and y as parameters rather than the matrix surface plot so I get natural ranges and axis labels. It seems that the resulting coordinate system is left-handed despite that fact that a 3D parametric curve constructed as a scatter employs a right-handed coordinate system that I prefer. I am a relatively new user. I am I confused? Is there a way to control the coordinate "handedness?" Any help would be greatly appreciated.