| A | A small random matrix |
| BG | The Brualdi-Gibson method for computing an expected permutation matrix |
| brute | Brute-force calculation of an expected permutation matrix |
| contractor | Contract a tridiagonal matrix |
| coollex | Computing combinations with the Coollex algorithm |
| df1 | A small data frame of simulated records |
| df2 | A (second) small data frame of simulated records |
| gray | Gray code enumeration |
| heap | Heap's algorithm for enumerating permutations |
| is.tridiagonal | Checking a matrix is tridiagonal |
| ryser | The Ryser method for computing an expected permutation matrix |
| sink | A variational approximation of an expected permutation matrix |
| triA | A small random tridiagonal matrix |