Activity
From 19 Oct 2020 to 17 Nov 2020
17 Nov 2020
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22:33 Support #322: Installation instructions (on website)
- Last week a student came with some problems with making CoCoA work on her MacBook; most of these are dealt with elsew...
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- A possible way to address the problem is to discourage users from typing *@/-@* by making it issue a warning.
As a... -
- This is probably not solvable :-(
I changed the emacs syntax declaration for "minus" into just a plain "." (punctu... -
- Here is some doc about emacs;...
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- Around line 335 in @cocoa5.el@ there is this...
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- As far as I can tell the following "digraphs" are recognized as starting a comment:
slash-star, slash-slash, slash-m... -
- I have tried a few tests. slash-minus seems to be recognised as a comment start; I have tried slash-char where char w...
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- If we do look at handling exponents, it might be nice to improve the error mesg when a negative exponent is given wit...
16 Nov 2020
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- I think CoCoA should give a warning or even an error. Currently, it gives neither!
On my computer I got *@x^8@*
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- What do you think CoCoA does with the following input?...
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- The installation instructions for Microsoft refer to the directory *@C:\cocoa-5.2\emacs@* instead of *@C:\cocoa-5.3\e...
13 Nov 2020
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- *Anna will do the following*
(1) move the info about BOOST into the subrecord @ExternalLibs@ (_i.e._ added to the li... -
14:34 Design #1530: VersionInfo -- better field names?
- and add Boost into the ExternalLibs record
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- Anna could you do the following on your old MacBook:
(1) download the official distrib
(2) follow the instructions ... -
- I have had trouble installing CoCoA-5 from our website on my old mac.
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- ...
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- The matter was raised by Bernhard Andraschko. His argument is below:...
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- At the moment CoCoA-5 does not recognise the keyword @xel@ for specifying a term order when defining a new ring.
I...
12 Nov 2020
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- Here is a little background/motivation.
I demoed to the students how one can impl in CoCoA-5 the algm to compute a m...
11 Nov 2020
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15:11 Feature #1535: New functions: argmin, argmax
- I clearly prefer @argmin@, since its easier to type and lower-case is also more common in mathematics, but (as for ma...
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- What should the names be?
In most contexts they are written @argmin@ (or maybe @arg min@ with a space).
Should be u... -
- Should this actually be in CoCoALib?
Might it be handy to have a version which returns the index (or indices) of t... -
- Here is a first prototype in CoCoA-5...
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- Proposal:
create new functions @argmin@ and @argmax@ which operate on lists.
The idea is that they return an/all ...
10 Nov 2020
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- Review the instructions for installing CoCoA-5.3 on MacOS.
Unfortunately it seems that an administrator account an... -
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- I suggest for the "Num bits" fields to the names *@NumBits_MachineInt@*, *@NumBits_MachineLong@* and *@NumBits_Small...
06 Nov 2020
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- The obvious convenient solution would be to allow @RingElem@ to accept the @RECORD@ produced by @IndetSymbols@.
Migh... -
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- The funcrions @RingElem@ and @IndetSymbols@ are sort-of-inverses; but we could perhaps do better?...
05 Nov 2020
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- At least + is commutative: @HilbertSeries(...)+1@ also causes a crash!
I have modified @Interpreter.C@, and checked ... -
- I have just tried using my last idea @rightOp->getType()->isProperSybstypeOf(..)@.
It compiled, and now produces a v... -
- The troublesome call is on line 1536 of @Interpreter.C@.
The problem is that @rightType@ has @dispatchIndex@ equal t... -
- The following input causes an assertion failure, followed by abort:...
04 Nov 2020
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- I would like @VersionInfo@ to tell me also how many bits are in @SmallExponent_t@ (since this does seem to affect exe...
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- The order of the fields printed by @VersionInfo@ is alphabetical. This means that some pieces of info are ordered st...
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- Is this issue still relevant?
Close? Reject? -
- Currently the script reports a very succinct error message if the executables cannot run (probably due to shared libr...
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- I have checked in the code.
03 Nov 2020
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- Can we make the link for the imminent (interim) release?
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- This is what happens now:...
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- I have made a change (by adding a call to mem fn @asRightValue@).
Now the code seems to be doing more or less what I... -
- Here is a little doc (where should it really go?)
The new script expects one of two possibilities for the @bin/@ d... -
02 Nov 2020
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- I do not understand lines 146 and 147 in @AST.H@.
They seem to say that everything can be indexed by both INT and ST... -
- Na toll:...
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- There is a fn *@canBeIndexedByBigInt@*, but there does not seem to be a @canBeIndexedByString@*.
Maybe I should ma... -
- I have a partial fix: the error mesg now says "Expecting type STRING" if the value being indexed is a @RECORD@ otherw...
30 Oct 2020
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- I have changed the impl so that only a single name after @export@ is expected.
Amazingly it compiled first time, and... -
- Checked in.
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- I have also implemented @RingElemVec@ (even though Anna did not want it).
I'll check in so we can test it.
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- Possibly add the year
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- The relevant function seems to be *@IndexedAccessExpression::implEval@* in @Interpreter.C@ around lines 3677--3695.
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- When trying to access a list using another list, the error message seems to be incorrect.
Here is an example:
<pr...
29 Oct 2020
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- I do not think it is dangerous.
We cannot easily compare with C++ input via the @>>@ operator since that reads int... -
- John Abbott wrote:
> We could add the following at the start of @RingElems@ (in @RingElemInput:C:278@)
> if (in.e... -
- Done up to letter P
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- This is how the renamed ones should look like...
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- The section "see also" is handy only for the online version.
Remove them.
Think of an easy way to call the manual... -
- I'm cleaning the manual for a homogeous straightforward style for obsolete/obsolescent entries.
Mainly it should jus... -
- Make it possible to get the manual for a selected string.
In the file buffer it is C-c C-h and it is also in the m... -
- This is a marginal issue, but we have two contrasting things (and now we know it ;-) ), so we should make a decision....
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- The relevant source code is in @Parser.C@ from line 556 to 595.
It is surprisingly long; allowing just a single nam...
28 Oct 2020
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- According to cppreference, the return value of @std::system@ is _implementation defined._
The CoCoA manual was too s... -
- I just noticed that @SystemCommand@ returns incorrect exit values, in particular the returned value is ´exit_val * 25...
27 Oct 2020
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- I have changed the impl so that there is no auto promotion for matrices.
The example in comment 1 now gives... -
- I must change the impl so that only the ringelem gets mapped. To map the matrix one must make an explicit call.
O... -
- As suggested in comment 10 above, I have copied the "done list" and the "todo list" to issue #7.
Closing this issue ... -
- Here are done list and todo list copied from issue #1461 comments 7 & 8. Moving them here.
*DONE LIST*
* @Matri... -
- *I have decided to make this the "master issue" for questions related to automatic ring conversion* (mainly because i...
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- I have revised the manual entry for @matrix@. I did note that in the examples @mat@ is used rather than @matrix@ -- ...
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- *Conclusion: no automatic mapping of ringelems in equality tests*
A user working in several rings at once has to s... -
- I am rejecting this. This issue is essentially duplicated in #1515.
*Main reason for rejection is in comment 3 of...
26 Oct 2020
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- I have improved (??) the code. It should give better err mesgs now. Here are some examples:...
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- A temporary workaround for Julian is probably the following:
* obtain the CoCoA sources, modify @include/CoCoA/confi... -
- I was not able to get the information I wanted from @valgrind@ (probably my fault).
After some thinking (but less ... -
- The C++ substring function has the following interface:
* @substr(str,n)@ the substring starting at the n-th posn u... -
- Presumably the CoCoA-5 interpreter has a function which performs the command *@source@*. If this function can accept...
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- The template function for lists (of all sorts) is actually called @LIST::LIST@... mmm, is that a ctor?
It is defined... -
- Investigate whether the template fn @Value::from@ (see @Interpreter.H@ around lines 1422--1442) can avoid copying by ...
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- Low priority because the current code works (but I would like to reduce dependency on BOOST).
This is likely to be... -
- The CoCoA-5 interpreter uses @BOOST_FOREACH@ in several places; I think the C++14 "range" @for@ syntax is essentially...
23 Oct 2020
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- MemPool causes a SEGV! 8-O
I'll try without MemPool... if I can remember how.
*ANS:* configure with @--thread... -
- I have just made a first run with debugger/profiler --> SEGV
Ooops!
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- I have modified the test program so that it first generates a list of random linear forms (and then prints it).
Wi... -
- I have just recompiled CoCoALib to use @unsigned char@ as exponent type.
The program ran noticeably faster: about 3 ... -
- The test example as in the description took about 7 mins to generate the 20Mbyte file. That is disappointingly slow ...
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- I like Anna's suggestions:
* by default start with the initial ring @QQ[x,y,z]@ (why should it be assigned to a var... -
- I vote for *(A)* Right after the banner print a message saying what the current ring is
Cleanliness would demand h... -
- This ought to be very easy: I am sure that C++ already has such a function.
I came across the problem while lookin... -
- Proposal: a new function to extract a substring.
Syntax would be something like @substr(str, start, end)@ where ind... -
- Ah, me too. I have just checked in my code... oddly, there were no clashes. What does that mean?
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- Fixed in @RingElemInput.C@, therefore also for CoCoALib.
22 Oct 2020
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- Clarification: the example in comment 1 does indeed run, but the resulting matrix is over @P@ not @K@.
To obtain a m... -
- I suggest closing this issue, and copying any unresolved parts into issue #7.
It would be nice to have issue #7 as t... -
- I now suggest that we make equality-test throw an error (@MixedRings@) if the args are elements of two different ring...
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- Hi,
I have a large polynomial system that has to be read from a file. In order to do so, I load all the polys as c...
21 Oct 2020
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- We could add the following at the start of @RingElems@ (in @RingElemInput:C:278@)...
20 Oct 2020
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- Now I'd have a slight preference in keeping the current name (it is convenient as it emphasise the "HilbertBasis" str...
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- Is this a quick issue? If so, is it worth finishing it quickly?
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- A better workaround is to use @sum([...])@.
I have just tried a test of the form:... -
- The relevant source code seems to be @Parser::parseUseStatement@ around line 356 in @Parser.C@.
What should the b... -
- I have checked in my prototype... hope it is a good one!
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- I have tried testing with the current public version of CoCoA-5 for linux: it fails because the interpreter does not ...
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- I now have a new @cocoa5@ script for GNU/linux. I have developed it "blind", so it probably does not work correctly ...
19 Oct 2020
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- *A relevant line in the source code* is @Interpreter.C:1212@ which contains:...
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- The technically easiest solution would be start with the ring @ZZ@; while not exactly what was suggested, I suspect t...
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