# bettiSmallCover -- Compute the betti numbers of a small cover

## Synopsis

• Usage:
bettiSmallCover(k,N)
bettiSmallCover(N)
• Inputs:
• Outputs:

## Description

Compute the betti numbers of a small cover. If a dimension k is specified, then only the k-th betti number of N is computed. If no dimension is specified, all the betti numbers between 0 and the dimension of N are computed.

## Ways to use bettiSmallCover :

• "bettiSmallCover(SmallCover)"
• "bettiSmallCover(ZZ,SmallCover)"

## For the programmer

The object bettiSmallCover is .