| Title |
User |
Message |
Date Posted |
| oh i see thanks |
dAedaL |
|
Nov 05, 2008 - 11:43:55 pm UTC |
| ... |
jargon |
Because you do it in reverse order. You first do [1 3 2] = (a c b), then [3 2 1] = (b c a) |
Nov 05, 2008 - 11:41:18 pm UTC |
| ... |
dAedaL |
why is [3 2 1][1 3 2](a b c) = (b c a) shouldn't it be (a b c) [3 2 1] (c b a) [1 3 2] (c a b) (c a b)? |
Nov 05, 2008 - 2:12:40 am UTC |
| oh alright thanks |
dAedaL |
|
Oct 27, 2008 - 12:12:06 am UTC |
| Re: Permutation matrices |
bbi5291 |
Probably [4 2 1 3] means "the fourth character followed by the second followed by the first followed by the third", giving (d b a c). It isn't clear that it doesn't mean the inverse of this permutatio... |
Oct 26, 2008 - 10:51:13 pm UTC |
| I don't understand the permutation matrices >> |
dAedaL |
so what would the counterchallenge be if the challenge was (a b c d) and the permutation was [4 2 1 3] ? |
Oct 26, 2008 - 10:34:44 pm UTC |
