Wolfram Language Paclet Repository
Community-contributed installable additions to the Wolfram Language
PeterBurbery`Combinatorics`
PermutationFromIndex  |
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Examples
(2)
Basic Examples
(1)
Produce the first permutation of length 7:
In[1]:=
 | PermutationFromIndex |
Out[1]=
{1,2,3,4,5,6,7}
Produce the last permutation of length 7:
In[2]:=
| PermutationFromIndex |
Out[2]=
{7,6,5,4,3,1,2}
Produce permutations with an index of n!/2:
In[3]:=
GridTable
[n!/2,n],{n,2,19}
 | PermutationFromIndex |
Out[3]=
1 | 2 | | | | | | | | | | | | | | | | | |
2 | 1 | 3 | | | | | | | | | | | | | | | | |
2 | 4 | 3 | 1 | | | | | | | | | | | | | | | |
3 | 2 | 5 | 4 | 1 | | | | | | | | | | | | | | |
3 | 6 | 5 | 4 | 2 | 1 | | | | | | | | | | | | | |
4 | 3 | 7 | 6 | 5 | 2 | 1 | | | | | | | | | | | | |
4 | 8 | 7 | 6 | 5 | 3 | 2 | 1 | | | | | | | | | | | |
5 | 4 | 9 | 8 | 7 | 6 | 3 | 2 | 1 | | | | | | | | | | |
5 | 10 | 9 | 8 | 7 | 6 | 4 | 3 | 2 | 1 | | | | | | | | | |
6 | 5 | 11 | 10 | 9 | 8 | 7 | 4 | 3 | 2 | 1 | | | | | | | | |
6 | 12 | 11 | 10 | 9 | 8 | 7 | 5 | 4 | 3 | 2 | 1 | | | | | | | |
7 | 6 | 13 | 12 | 11 | 10 | 9 | 8 | 5 | 4 | 3 | 2 | 1 | | | | | | |
7 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 6 | 5 | 4 | 3 | 2 | 1 | | | | | |
8 | 7 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 6 | 5 | 4 | 3 | 2 | 1 | | | | |
8 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | | | |
9 | 8 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | | |
9 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | |
10 | 9 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
Neat Examples
(1)
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