multigrading.lib
LIB "multigrading.lib"; intmat S[3][3] = 1, 0, 0, 0, 1, 0, 0, 0, 1; intmat L[3][2] = 1, 1, 1, 3, 1, 5; def G = createGroup(S, L); // (S+L)/L printGroup(G); ==> Generators: ==> 1 0 0 ==> 0 1 0 ==> 0 0 1 ==> Relations: ==> 1 1 ==> 1 3 ==> 1 5