On 2017-11-01, David Roe <roed.m...@gmail.com> wrote:
> I don't think you're missing anything, and I would support adding this
> feature to matrices.

I wouldn't support it.

If you have an integral domain R, then the quotient x/y for x,y in R
will live in the fraction field of R, whereas floor division x//y
(I think) is only defined if R is a euclidean ring (division x//y
with remainder x%y).

The situation that this thread is about is different. Here,
we have a module, not an integral domain nor a euclidean ring.
If M is a matrix and c a skalar, then M/c is just syntactical
sugar for (1/c)*M.

Should M//c become syntactical sugar for "conversion of (1/c)*M
into M.parent()"? I don't see why it should.

That said: I also don't say that I would oppose to making M//c work.
I just wouldn't support it...

Best regards,
Simon

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