-- -*- M2-comint -*- {* hash: -2019528163 *} i1 : I = {a,b,c,d,e}; i2 : C = {(a,b),(b,c),(a,c),(a,d),(d,e)}; i3 : G = directedGraph(I,C); i4 : P = poset(I,C); i5 : adjacencyMatrix(G) o5 = | 0 1 1 1 infinity | | infinity 0 1 infinity infinity | | infinity infinity 0 infinity infinity | | infinity infinity infinity 0 1 | | infinity infinity infinity infinity 0 | 5 5 o5 : Matrix RR <--- RR 53 53 i6 : adjacencyMatrix(P) o6 = | 0 1 1 1 infinity | | infinity 0 1 infinity infinity | | infinity infinity 0 infinity infinity | | infinity infinity infinity 0 1 | | infinity infinity infinity infinity 0 | 5 5 o6 : Matrix RR <--- RR 53 53 i7 : adjacencyMatrix(I,C) o7 = | 0 1 1 1 infinity | | infinity 0 1 infinity infinity | | infinity infinity 0 infinity infinity | | infinity infinity infinity 0 1 | | infinity infinity infinity infinity 0 | 5 5 o7 : Matrix RR <--- RR 53 53 i8 :