Activity
From 18 Mar 2015 to 16 Apr 2015
16 Apr 2015
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22:39 CoCoA-5 Feature #652: Flag to enable/disable printing of list of loaded packages
- JAA does not much like the current approach (variable @PkgOut@).
If a package provokes an error then the screen fill... -
- Now resets error counter before reading each package (@Main.C:289@).
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- We shall need collections of @DivMask@ mirroring the elements of @myCornerList@ and @myAvoidList@. A complication ar...
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- Internally @QBGenerator@ usually makes very many divisibility tests; use @DivMask@ to make these tests faster.
Thi...
15 Apr 2015
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- Is there a @MaxExp@ function? At least one @PPMonoid@ has no upper limit on exponents; what value should be used in ...
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- Just to wake up this thread as I have modified @QBGenerator@ lately.
Does anyone actually need @myNewCorner@ list?... -
- I think I have fixed it; not entirely sure because several Emacs Lisp fns do not work the way I expected them too (or...
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- Perhaps the naive reverse search can be replaced by a call to @cocoa5-last-unended-begin@ which should be intelligent...
14 Apr 2015
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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"
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- The following in complete code adds the wrong commented out name after doing @C-c C-e@ (calls @cocoa5-close-block@):
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- OK I can try doing the tests (sometime over the next few days).
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- 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... -
- The internal representation of module in GBasis computations is through an embedding into a polynomial ring.
The ind... -
- Here are two potentially related fns:
* @InvolvesOnlyTheseIndets@ which returns a @bool@ -- could be much faster than... -
- A possible name: *@IndetsIn@*
I would like to have *IndetsIn* also for a list (which is assumed to be "homogeneous",... -
- Perhaps we will need two overflow check fns:
* @myMulOverflowCheck@
* @myMulByIndetPowerOverflowCheck@
It would ... -
- I have recently added the fn @PowerOverflowCheck@ for PPs; implemented via mem fn @myPowerOverflowCheck@. Currently ...
13 Apr 2015
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- I have just looked at some stats about @MemPool@ in one very particular example, and now wonder whether sorting the e...
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- Currently it is possible to get some stats reports from @MemPool@ objects by doing all of the following:
* @MemPoolD... -
- I wanted to get some usage stats from @MemPool@ objects; it was not as easy/helpful as I would have liked.
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- Why is the @MemPool@ object which is given to @DistrMPoly@ ignored?
MemPool logging shows that the summand pool is... -
- It seems that @DistrMPolyClean@ does not use @MemPool@ for summands even though a suitable @MemPool@ as passed as arg...
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- Not quite this topic, but very close. I made a "mistake" in a package file which produced an annoying "warning"; thi...
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- I have just tried all tests with @SmallExponent_t@ set to @unsigned char@, and @myMaxComponentIndex@ set to 100 (inst...
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- I have again encountered the problems (failing tests) with using @unsigned char@ for exponents. I wanted to use very...
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- I have implemented a first version. All tests pass. Still needs cleaning; must update doc. I'll pass prototype to ...
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- The proposed design is for each @PPMonoid@ to offer 2 fns:
* @myPower@ which just computes the power *without checkin... -
- Profiling showed that powering PPs incurred a significant time penalty in the (prototype) code for @ImplicitDirect@.
...
10 Apr 2015
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- Implemented @SparsePolyRingBase::IdealImpl::myDivMod@ for the 0-dimensional case....
09 Apr 2015
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- Note: perhaps also consider the design of C++ @std::accumulate@? Is there anything in BOOST?
My (vague) idea is t... -
- I have just written @DetDirect@ which computes the sum of many terms (one for each permutation). In order to get dec...
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- Consider creating a general "accumulator" for ring elems, a sort of generalization of a geobucket.
02 Apr 2015
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- If we want (and we want) to attract contributions we need to find a proper way to give them credits for their work, a...
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- 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
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- In my specific instance the direct algorithm (as alternating sum of products) would be best.
The problem with mult... -
- CoCoA can be too slow and require too much RAM for computing determinant of a matrix of multivariate polynomials.
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26 Mar 2015
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- I am planning to implement a direct algorithm: each entry in the @adj@ is just a determinant, and each determinant is...
25 Mar 2015
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- Even @AdjByDetOfMinors@ takes too long for a 6x6 matrix of distinct indets. Why?
*2015-03-26 NOTE* I think the prob... -
- @adj@ is a very simple function: it chooses between @AdjByDetOfMinors@ and @AdjByInverse@.
What do you think @AdjB... -
- 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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