CoCoA Project

03 Aug 2021

21:26 CoCoALib Design #1606: Return type with const

I have changed all files which obviously need changing (after grepping for a suitable regexp).
It compiles, and all ... John Abbott

14:08 CoCoALib Design #1606 (In Progress): Return type with const

I have modified @BigIntOps@ and everything compiles and runs fine.
John Abbott

11:04 CoCoALib Design #1606 (Closed): Return type with const

While improving/correcting @binomial@ (see issue #1605) I noticed that many functions have a "funny" return type, nam... John Abbott

14:19 CoCoALib Bug #1605 (Feedback): binomial: domain of defn?

Mostly done now.
John Abbott

11:17 CoCoALib Design #1607 (New): Coding guidelines

I have just found the following link
*https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines*
apparently writ... John Abbott

10:35 CoCoALib Feature #1598: RingHom: implement phi(X) as apply(phi, X) also for X vector and matrix

I have updated *@ValgrindTests.sh@* --now it should give a helpful error mesg when @valgrind@ is not installed (or no... John Abbott

02 Aug 2021

16:13 CoCoALib 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 CoCoALib 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 CoCoALib 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 CoCoALib 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 CoCoALib 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

12:16 CoCoA-5 Bug #946: Function "ideal" evaluates the argument twice

Should check all fns which call *@evalArgAsT1or@*
My computer/fgrep says there are 85 such fns.
John Abbott

11:14 CoCoA-5 Bug #1604: SqFreeFactor crashes over non-perfect field

The following test case still fails... John Abbott

29 Jul 2021

10:51 CoCoA-5 Bug #1604 (In Progress): SqFreeFactor crashes over non-perfect field

Correction: the problem seems to be that @SqfreeFactorCharP@ goes into an infinite loop.
The call to @IteratedPthR... John Abbott

28 Jul 2021

22:31 CoCoA-5 Bug #1604: SqFreeFactor crashes over non-perfect field

The problem appears to be an infinite loop inside *@PthRoot@* (in @ring.C:1220--1250@).
For some reason the iterator... John Abbott

19 Jul 2021

15:54 CoCoALib 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