Synopsis:
HH_i f -- provides the map on the i-th homology module by a map f of chain complexes.
See also:
Code:
-- ../../../Macaulay2-0.9.2/Macaulay2/m2/chaincomplexes.m2:452-454 homology(ZZ,ChainComplexMap) := Matrix => opts -> (i,f) -> ( inducedMap(homology(i+degree f,target f), homology(i,source f),f_i) )