
*** kleinbot ***

In this example, the homology module of the Klein bottle
is computed with coefficients in Z and in Z_2.

The homology module is computed by the program "homcubes". We first 
compute the homology module with integer coefficients, and then with 
coefficients in Z_2.

This example contains two pictures of the Klein bottle. One consists 
of 4-dimensional cubes which was created with the use of a parametrization
for embedding of this manifold into R^4. The other one consists of
2-dimensional elementary cubes (cubical cells) in R^4 and was obtained
from the first one by geometric reduction programmed in "homcubes".
