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evenHomologyLength -- sum of the lengths of the even degree homology groups

Synopsis

Usage:

m = evenHomologyLength F
Inputs:
- F, a chain complex,
Outputs:
- m, an integer,

Caveat

Returns an error if any homology has infinite length

Ways to use evenHomologyLength:

evenHomologyLength(ChainComplex)

For the programmer

The object evenHomologyLength is a method function.