[sage-devel] Re: Mutability of matrices with no entries

2015-08-12 Thread Andrey Novoseltsev
Ready for review - I've ended up rewriting quite a bit in echelon_form On Saturday, 1 August 2015 02:50:01 UTC-6, Volker Braun wrote: > > The principle of least surprise would suggest that mutability should > follow the same rules independent of the matrix size. And echelon_form > should always

[sage-devel] Re: Mutability of matrices with no entries

2015-08-01 Thread Volker Braun
The principle of least surprise would suggest that mutability should follow the same rules independent of the matrix size. And echelon_form should always return an immutable matrix. On Saturday, August 1, 2015 at 1:51:12 AM UTC+2, Andrey Novoseltsev wrote: > > Hello, > > While working on http