Data.List.transpose needs more docs
as mentioned by Doug McIlroy on haskell-prime.
My preference in the interest of brevity would be to not include the equations that Doug mentioned and simply add his nicely constructed educating example to the docs:
The transpose function transposes the rows and columns of its argument. For example,
transpose [[1,2,3],[4,5,6]] == [[1,4],[2,5],[3,6]]If some of the rows are shorter than the following rows, their elements are skipped:
transpose [[10,11],[20],[],[30,31,32]] == [[10,20,30],[11,31],[32]]
Trac metadata
| Trac field | Value |
|---|---|
| Version | 7.8.4 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Core Libraries |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | core-libraries-committee@haskell.org |
| Operating system | |
| Architecture |