Re: [sage-combinat-devel] Plotting permutations

2012-04-25 Thread Nathann Cohen
Helloo everybody !!! I just sent the patch ! It is a bit dense, but efficiently documented :-) I do not expect it to be reviewed very soon, but if anybody is interested I would be glad to see it merged to Sage. It also implements some stuff of independent interest (negative certificates for b

Re: [sage-combinat-devel] Re: Drawings for Permutations -- how would you plot them ?

2012-04-25 Thread Nathann Cohen
Helloo Everybody You are totally right ! A collection of directed cycles is probably the most standard way to draw a permutation ! Well, it is now the default one in #12872. I also implemented Christian's chord-diagram (it is just an option of the DiGraph show method :-p), but assumin

Re: [sage-combinat-devel] Re: Drawings for Permutations -- how would you plot them ?

2012-04-25 Thread Martin Rubey
Christian Stump writes: >> group theorists would normally draw permutations as collection of directed >> cycles, with labelled vertices. > > I would somewhat also expect this to be the default drawing of a > permutation. Especially, when a permutation has a lot of fix points, > diagram presentati