On 2007-09-25, Philippa Cowderoy
On Tue, 25 Sep 2007, Lennart Augustsson wrote:
It's reasonably easy to read. But you could make it more readable. Type signatures, naming the first lambda...
It might be reasonable to define something like mapMatrix that happens to be map . map, too. Along with at least a type synonym for matrices.
Yes, that's a good idea. Because it lets you change from the often annoying list-of-lists implementation to something more reasonable for e.g. transpose, as recently mentioned.
Name domain constructs rather than expecting people to reconstruct them from their implementations, in other words.
Right. But a list-of-lists isn't a terribly specific domain construct. When it's used without further semantics, I think map . map is the best translation of intent. -- Aaron Denney -><-