Re: [Tutor] List elements as indices to another list

2008-08-03 Thread Alan Gauld
"Carlos Laviola" <[EMAIL PROTECTED]> wrote i [0, 1, 2] j [2, 1, 0] Theoretically, I could then just iterate over range(len(M)) and grab M[i[N]j[N]], but that's not legal. What would be the right way of doing this? M [ i[N] ] [ j[N] ] You just missed a couple of brackets... HTH, Alan

[Tutor] List elements as indices to another list

2008-08-03 Thread Carlos Laviola
Hi, I have a simple "matrix" (nested list) defined as such: M = [[1, 2, 3], [4, 5, 6], [7, 8, 9]] I'm trying to come up with a different way of getting its, well, "reverse antidiagonal", since the actual antidiagonal of M goes from M[0, N] to M[N, 0] according to http://planetmath.org/encycloped