CoCoA » CoCoALib

02 Aug 2021

16:13 Bug #1605 (Resolved): binomial: domain of defn?

I have changed the code to use the fully general defn... not really sure why it was not already so defined.
Changed ... John Abbott

11:59 Bug #1605 (In Progress): binomial: domain of defn?

So the main question is: is it better to allow the fully general definition, or better to "protect the careless user"... John Abbott

11:57 Bug #1605: binomial: domain of defn?

The sample implementations on the Wikipedia page accept all pairs of integers as args, with
the convention that the ... John Abbott

10:27 Bug #1605 (Closed): binomial: domain of defn?

What should the domain of definition of *@binomial(n,r)@* be?
Most restrictive is *@0 <= r <= n@*.
More flexible ... John Abbott

30 Jul 2021

19:31 Feature #1598: RingHom: implement phi(X) as apply(phi, X) also for X vector and matrix

I have a prototype for list/vector; not checked, not checked-in.
Should I check it in? Would you test it?
John Abbott

17:30 Feature #1598: RingHom: implement phi(X) as apply(phi, X) also for X vector and matrix

Added phi(matrix).
Prototype. Not entirely certain with it.
CVS'd Anna Maria Bigatti

19 Jul 2021

15:54 Bug #1601 (In Progress): Compilation ambiguity

I have now modified *@apply.H@* so that the *@apply@* function for vectors is just a normal function (rather than a p... John Abbott