SG::Mat2Perm
--
calculates a permutation from its matrix
SG::Mat2Perm(sqm)
sqm | - | any square permutation matrix |
The SG::Mat2Perm
function calculates a permutation from a matrix.
Given a permutation perm
, the corresponding matrix has
entries 1 in position
(i,perm
[i]) and 0 otherwise.
>> muEC::SG::Perm2Mat( [2,4,3,1] );
+- -+ | 0, 1, 0, 0 | | | | 0, 0, 0, 1 | | | | 0, 0, 1, 0 | | | | 1, 0, 0, 0 | +- -+
>> muEC::SG::Mat2Perm(%);
[2, 4, 3, 1]
Perm2Mat
, Perm2RRep
, RRep2Perm
MuPAD Combinat, an open source algebraic combinatorics package