Activity
From 21 Jul 2021 to 19 Aug 2021
06 Aug 2021
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08:44 CoCoALib Feature #1598 (Resolved): RingHom: implement phi(X) as apply(phi, X) also for X vector and matrix
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08:44 CoCoALib Feature #1598: RingHom: implement phi(X) as apply(phi, X) also for X vector and matrix
- Implemented for vector also in CoCoA-5, where it'll be most useful.
It was much more painful than expected because o...
03 Aug 2021
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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 ... -
14:08 CoCoALib Design #1606 (In Progress): Return type with const
- I have modified @BigIntOps@ and everything compiles and runs fine.
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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...
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14:19 CoCoALib Bug #1605 (Feedback): binomial: domain of defn?
- Mostly done now.
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10:01 CoCoALib Bug #1605: binomial: domain of defn?
- John Abbott wrote:
> I have changed the code to use the fully general defn... not really sure why it was not already... -
11:17 CoCoALib Design #1607 (New): Coding guidelines
- I have just found the following link
*https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines*
apparently writ... -
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...
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09:45 CoCoALib Feature #1598: RingHom: implement phi(X) as apply(phi, X) also for X vector and matrix
- John Abbott wrote:
> I have a prototype for list/vector; not checked, not checked-in.
> Should I check it in? Woul...
02 Aug 2021
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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 ... -
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"...
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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 ... -
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 ...
30 Jul 2021
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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?
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17:30 CoCoALib 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 -
17:32 CoCoA-5 Bug #946: Function "ideal" evaluates the argument twice
- Fixed PolyRingHom and PolyAlgebraHom.
Added @evalRVAsListOfRingElem@ with ring
CVS'd -
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.
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11:13 CoCoA-5 Bug #946: Function "ideal" evaluates the argument twice
- Anna Maria Bigatti wrote:
> (I'll see ModuleElem)
Worked together: ModuleElem is fine. The problem is in submodu... -
11:14 CoCoA-5 Bug #1604: SqFreeFactor crashes over non-perfect field
- The following test case still fails...
29 Jul 2021
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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...
28 Jul 2021
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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...
27 Jul 2021
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14:42 CoCoA-5 Bug #1604 (In Progress): SqFreeFactor crashes over non-perfect field
- It seems like SqFreeFactor only works over perfect fields, but CoCoA does not check whether the ring is defined over ...
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