gap> G:=SymmetricMatrixToFilteredGraph(S,10,100);; 
#Filtration length T=10, distances greater than 100 discarded.
gap> N:=SimplicialNerveOfFilteredGraph(G,2);;
gap> C:=SparseFilteredChainComplexOfFilteredSimplicialComplex(N);;
Filtered sparse chain complex of length 2 in characteristic 0 .
