<91, [ 12, 338/35, 39/25, 1, 312/175, 39/5 ]> P = [ 1 20 30 40] [ 1 7 4 -12] [ 1 0 -3 2] [ 1 -8 9 -2] Q = [ 1 12 65 13] [ 1 21/5 0 -26/5] [ 1 8/5 -13/2 39/10] [ 1 -18/5 13/4 -13/20] L = [ [1 0 0 0] [0 1 0 0] [0 0 1 0] [0 0 0 1], [ 0 20 0 0] [ 1 3 12 4] [ 0 8 4 8] [ 0 2 6 12], [ 0 0 30 0] [ 0 12 6 12] [ 1 4 13 12] [ 0 6 9 15], [ 0 0 0 40] [ 0 4 12 24] [ 0 8 12 20] [ 1 12 15 12] ] L* = [ [1 0 0 0] [0 1 0 0] [0 0 1 0] [0 0 0 1], [ 0 12 0 0] [ 1 47/35 338/35 0] [ 0 312/175 303/35 39/25] [ 0 0 39/5 21/5], [ 0 0 65 0] [ 0 338/35 1313/28 169/20] [ 1 303/35 2535/56 403/40] [ 0 39/5 403/8 273/40], [ 0 0 0 13] [ 0 0 169/20 91/20] [ 0 39/25 403/40 273/200] [ 1 21/5 273/40 39/40] ]