EulerCharacteristic(C):: ChainComplex --> Int
EulerCharacteristic(K):: CubicalComplex --> Int
EulerCharacteristic(K):: PureCubicalComplex --> Int
EulerCharacteristic(K):: PurePermComplex --> Int
EulerCharacteristic(K):: RegCWComplex --> Int
EulerCharacteristic(K):: SimplicialComplex --> Int

Inputs a chain complex C and returns its Euler characteristic.

Inputs a cubical, or pure cubical, or pure permutahedral or regular CW-, or simplicial complex K and returns its Euler characteristic.