Activity
From 16 Mar 2015 to 14 Apr 2015
14 Apr 2015
- 18:36 CoCoA-5 Bug #684: Emacs UI: wrong name after auto-inserting enddefine
- I confirm it is just based on a trivial search for "define"
- 15:37 CoCoA-5 Bug #684 (Closed): Emacs UI: wrong name after auto-inserting enddefine
- The following in complete code adds the wrong commented out name after doing @C-c C-e@ (calls @cocoa5-close-block@):
... - 15:20 CoCoALib Design #683: Module index component in internal compressed representation
- OK I can try doing the tests (sometime over the next few days).
- 13:57 CoCoALib Design #683: Module index component in internal compressed representation
- I think 10000 can be replaced by @max_exp@ (how is it called in cocoalib?)
I don't think it is ever used in operation... - 13:50 CoCoALib Design #683 (Closed): Module index component in internal compressed representation
- The internal representation of module in GBasis computations is through an embedding into a polynomial ring.
The ind... - 14:05 CoCoALib Feature #658: Indets actually in a poly (or vector or matrix)
- Here are two potentially related fns:
* @InvolvesOnlyTheseIndets@ which returns a @bool@ -- could be much faster than... - 13:59 CoCoALib Feature #658: Indets actually in a poly (or vector or matrix)
- A possible name: *@IndetsIn@*
I would like to have *IndetsIn* also for a list (which is assumed to be "homogeneous",... - 11:23 CoCoALib Feature #682: PPMonoid: add fn to check for overflow in products
- Perhaps we will need two overflow check fns:
* @myMulOverflowCheck@
* @myMulByIndetPowerOverflowCheck@
It would ... - 11:18 CoCoALib Feature #682 (New): PPMonoid: add fn to check for overflow in products
- I have recently added the fn @PowerOverflowCheck@ for PPs; implemented via mem fn @myPowerOverflowCheck@. Currently ...
13 Apr 2015
- 23:31 CoCoALib Feature #437: MemPool: order free blocks?
- I have just looked at some stats about @MemPool@ in one very particular example, and now wonder whether sorting the e...
- 23:25 CoCoALib Feature #681: MemPool: make it easier to get just stats
- Currently it is possible to get some stats reports from @MemPool@ objects by doing all of the following:
* @MemPoolD... - 23:20 CoCoALib Feature #681 (New): MemPool: make it easier to get just stats
- I wanted to get some usage stats from @MemPool@ objects; it was not as easy/helpful as I would have liked.
- 22:22 CoCoALib Bug #680: DistrMPolyClean does not use MemPool for summands?
- Why is the @MemPool@ object which is given to @DistrMPoly@ ignored?
MemPool logging shows that the summand pool is... - 22:18 CoCoALib Bug #680 (Resolved): DistrMPolyClean does not use MemPool for summands?
- It seems that @DistrMPolyClean@ does not use @MemPool@ for summands even though a suitable @MemPool@ as passed as arg...
- 16:21 CoCoA-5 Feature #652: Flag to enable/disable printing of list of loaded packages
- Not quite this topic, but very close. I made a "mistake" in a package file which produced an annoying "warning"; thi...
- 15:43 CoCoA-5 Bug #275: Unhelpful error messages when SmallExponent_t is unsigned char.
- I have just tried all tests with @SmallExponent_t@ set to @unsigned char@, and @myMaxComponentIndex@ set to 100 (inst...
- 15:13 CoCoA-5 Bug #275: Unhelpful error messages when SmallExponent_t is unsigned char.
- I have again encountered the problems (failing tests) with using @unsigned char@ for exponents. I wanted to use very...
- 15:01 CoCoALib Slug #679: power for PPs is too slow
- I have implemented a first version. All tests pass. Still needs cleaning; must update doc. I'll pass prototype to ...
- 14:59 CoCoALib Slug #679: power for PPs is too slow
- The proposed design is for each @PPMonoid@ to offer 2 fns:
* @myPower@ which just computes the power *without checkin... - 14:54 CoCoALib Slug #679 (Closed): power for PPs is too slow
- Profiling showed that powering PPs incurred a significant time penalty in the (prototype) code for @ImplicitDirect@.
...
10 Apr 2015
- 10:40 CoCoALib Feature #520 (In Progress): Compute inverse in quotient ring (i.e. division in algebraic extn)
- Implemented @SparsePolyRingBase::IdealImpl::myDivMod@ for the 0-dimensional case....
09 Apr 2015
- 21:46 CoCoALib Feature #678: Accumulator (like a geobucket)
- Note: perhaps also consider the design of C++ @std::accumulate@? Is there anything in BOOST?
My (vague) idea is t... - 21:36 CoCoALib Feature #678: Accumulator (like a geobucket)
- I have just written @DetDirect@ which computes the sum of many terms (one for each permutation). In order to get dec...
- 21:30 CoCoALib Feature #678 (In Progress): Accumulator (like a geobucket)
- Consider creating a general "accumulator" for ring elems, a sort of generalization of a geobucket.
02 Apr 2015
- 17:55 CoCoA-5 Support #677 (New): Credits to CoCoA-5 contributors
- If we want (and we want) to attract contributions we need to find a proper way to give them credits for their work, a...
- 17:53 CoCoALib Support #676 (In Progress): Credits to CoCoALib contributors
- If we want (and we want) to attract contributions we need to find a proper way to give them credits for their work, a...
28 Mar 2015
- 09:18 CoCoALib Slug #675: Matrix determinant over multivariate poly ring
- In my specific instance the direct algorithm (as alternating sum of products) would be best.
The problem with mult... - 09:16 CoCoALib Slug #675 (In Progress): Matrix determinant over multivariate poly ring
- CoCoA can be too slow and require too much RAM for computing determinant of a matrix of multivariate polynomials.
...
26 Mar 2015
- 11:53 CoCoALib Bug #15: Adjoint of a non-invertible matrix
- I am planning to implement a direct algorithm: each entry in the @adj@ is just a determinant, and each determinant is...
25 Mar 2015
- 15:59 CoCoALib Bug #15: Adjoint of a non-invertible matrix
- Even @AdjByDetOfMinors@ takes too long for a 6x6 matrix of distinct indets. Why?
*2015-03-26 NOTE* I think the prob... - 15:22 CoCoALib Bug #15: Adjoint of a non-invertible matrix
- @adj@ is a very simple function: it chooses between @AdjByDetOfMinors@ and @AdjByInverse@.
What do you think @AdjB... - 14:52 CoCoALib Bug #15 (In Progress): Adjoint of a non-invertible matrix
- I do not recall when, but @adj@ has aleady been added to CoCoALib.
It has a *VERY BAD SLUG*: even after several mi...
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