The Cosine Surface
Click for VRML

Introduction:

The cosine surface is similar to the sine surface, without the self-intersections.

Definition:

Properties:

Tangent Planes:

At u = u0, v = v0, the tangent plane to the surface is parameterized by:

Infinitesimal Area:

The infinitesimal area of a patch on the surface is given by

Gaussian Curvature:
Gaussian curvature of the surface.
Surface colored by Gaussian curvature.

Mean Curvature:

H[u, v] = [click for formula]
Mean curvature of the surface.
Surface colored by Mean curvature.