COMB S,L / S=SUBSETS,<n> lists all non-empty subgroups of <n> elements. COMB S2,L / S2=SUBSETS,<n>,<m> lists subsets of <n> elements consisting of <m> elements. Example: COMB SUB3,CUR+1 / SUB3=SUBSETS,5,3 Subsets of size 3 of 5 elements: N[SUB3]=10 1 2 3 1 2 4 1 2 5 1 3 4 1 3 5 1 4 5 2 3 4 2 3 5 2 4 5 3 4 5 COMB S2,L / S2=SUBSETS,<n>,<m> ELEMENTS=<list_of_elements> lists all m-subsets of <n> elements given by ELEMENTS list with possible repetitions. Example: COMB SUB5R,CUR+1 / SUB5R=SUBSETS,8,5 ELEMENTS=a,a,a,b,b,c,c,c 5-subsets of 8 elements (with repetitions): N[SUB5R]=9 a a a b b a a a b c a a a c c a a b b c a a b c c a a c c c a b b c c a b c c c b b c c c C = Other forms of COMB