CoCoA » CoCoA-5

08 Jan 2021

15:23 Feature #1516 (Resolved): substring function

I have written a (short) manual entry.
Should there be some tests? :-/
John Abbott

15:16 Feature #1516: substring function

I have written a first version (in @BuiltinFunctions.C@).
* name: *@substring@*; I prefer not to use @sbstr@ as th... John Abbott

13:06 Feature #1516 (In Progress): substring function

Start pos and length seem reasonable to me.
Should we also allow the version which goes to end of string? KISS: m... John Abbott

11:56 Bug #1539: Website: installation instructions for Microsoft

add the instruction written by Henry O'Keeffe Anna Maria Bigatti

11:53 Bug #1512 (Closed): Package with unexpected EOF

John Abbott

11:51 Design #1495 (Closed): Package exporting nothing?

Tested. OK. Anna Maria Bigatti

11:35 Feature #1509 (Closed): RingElems with empty input

Anna Maria Bigatti

11:31 Design #1546: Improve 'describe' or 'print' for a function

And also fix the manual. Anna Maria Bigatti

11:30 Design #1550 (Closed): version number for CoCoA5 snapshot release?

For snapshot releases: (Anna) remember to change the links in the webpage. Anna Maria Bigatti

11:28 Feature #1543 (Closed): Default path for packages

Anna Maria Bigatti

11:24 Design #1530 (Closed): VersionInfo -- better field names?

John Abbott

11:23 Support #1498 (Closed): Export many names or just one?

John Abbott

11:20 Slug #1556: DivAlg slower than NR

I checked: not as easy as I thought.
@NR@ is defined in @SparsePolyOps-RingElem.C@ and make use of ReductionCog. Th... Anna Maria Bigatti

11:19 Bug #1527 (Closed): Inadequate error message on incorrect list access

John Abbott

23 Dec 2020

11:37 Design #1540: Double power

Relevant source is probably in @Parser.C@ around line 1890; *@Parser::parsePowerExpression@*
John Abbott

22 Dec 2020

17:19 Slug #1556: DivAlg slower than NR

Check the code for NR and see how to make the data type for the output. Anna Maria Bigatti

14:21 Slug #1556: DivAlg slower than NR

Just for the record: @NR@ took about 0.063s, @DivAlg@ took about 1280s.
Presumably @DivAlg@ should also be built-i... John Abbott

14:03 Slug #1556: DivAlg slower than NR

I verify that the problem is present in the current version on my computer.
*@NR@* is a built-in function; *@DivAl... John Abbott

13:57 Slug #1556 (New): DivAlg slower than NR

Andraschko reported the following by email:
Consider the following code which computes the minimal polynomial of sqr... John Abbott

16:20 Bug #1553 (Feedback): Timing SystemCommand

I have checked in *@ElapsedTime@* (incl. doc).
New qn: is the fn *@RealTime@* in CoCoALib obsolete? -- *NOTE:* may... John Abbott

15:36 Design #1554: cocoa5-emacs-dir or cocoa5-root-dir?

The question arose after an email from Alasdair McAndrew (around 2020-12-18). Anna will investigate.
John Abbott

15:32 Design #1554 (In Progress): cocoa5-emacs-dir or cocoa5-root-dir?

Anna points out that there are complications on Microsoft where one cannot be entirely sure where the release is unpa... John Abbott

15:03 Design #1546: Improve 'describe' or 'print' for a function

Now "print/println ... (on ...)" prints the body of used defined functions.
To do: "describe" should give the name o... Anna Maria Bigatti

19 Dec 2020

16:29 Bug #1553: Timing SystemCommand

The new func @ElapsedTime@ is perfectly fine with me!
I personally prefer the return value representing a rational a... Julian Danner

18 Dec 2020

17:45 Bug #1553: Timing SystemCommand

I have now implemented *@ElapsedTime@* (based on the standard C++ @steady_clock@).... John Abbott

16:40 Bug #1553: Timing SystemCommand

It might be possible to replace the call to the C++ function @system@, by a @fork@ and an @exec@ (or @execv@?).
I ha... John Abbott

17:24 Design #1554: cocoa5-emacs-dir or cocoa5-root-dir?

It seems more natural to me to specify the path to the "root" directory; then all accesses to files are "downward".
... John Abbott

17:22 Design #1554 (Closed): cocoa5-emacs-dir or cocoa5-root-dir?

In the emacs initialization lines we define *@cocoa5-emacs-dir@*.
Why do we not define *@cocoa5-root-dir@* instead? ... John Abbott

17 Dec 2020

17:07 Bug #1553: Timing SystemCommand

oh well yes, @sleep@ may not be the best test, however I think it nonetheless highlights my problem ;)
I agree tha... Julian Danner

17:07 Bug #1553 (In Progress): Timing SystemCommand

I have searched briefly (or not-so-briefly) on internet, and it seems that C++ does not yet offer a way to measure pr... John Abbott

16:35 Bug #1553: Timing SystemCommand

First comment: using @sleep@ is perhaps not the best test. Below is what I get using bash on my Linux computer:
<pre... John Abbott

14:47 Bug #1553 (Closed): Timing SystemCommand

Hi,
I was just timing some computations and noticed that the the time it takes to execute a command with @SystemCo... Julian Danner

13 Dec 2020

17:16 Bug #1552: subst: not checking args properly

@subst@ is defined in package @misc@.
The real problem appears to be in @Subst2_top@:
@x+2@ is evaluated in @ZZ/(... John Abbott

17:13 Bug #1552 (New): subst: not checking args properly

The following shows that @subst@ can behave wrongly:... John Abbott

11:07 Design #1551: Emacs: avoid making buffer visible in 2 "windows"?

After a quick search I found the following useful link:
*@https://emacs.stackexchange.com/questions/2959/how-to-kn... John Abbott

11:06 Design #1551 (New): Emacs: avoid making buffer visible in 2 "windows"?

In Emacs if I type @M-x cocoa5 RET@ it changes the current "window"(?) to show @*cocoa5*@ buffer even if this buffer ... John Abbott

12 Dec 2020

21:37 Design #1550 (Feedback): version number for CoCoA5 snapshot release?

I have checked in: better doc in @release-files/version@, new target in @Makefile@, new program @check-version-define... John Abbott

21:36 Bug #1512 (Feedback): Package with unexpected EOF

I have checked the code in. No test (do we need one?)
John Abbott

11 Dec 2020

21:54 Design #1550 (Resolved): version number for CoCoA5 snapshot release?

I have added a safety check. It seems to work well enough.
Tomorrow I'll check it in.
John Abbott

21:09 Design #1550: version number for CoCoA5 snapshot release?

I have now checked where the values of @COCOA5_VER_MAJ@ etc are used.
I believe it is safe if they contain alphanume... John Abbott

14:31 Design #1550 (In Progress): version number for CoCoA5 snapshot release?

I changed the file @src/CoCoA/release-files/version@ so that the 3rd component was @3b@ (instead of just @3@).
CoCoA... John Abbott

12:20 Design #1550 (Closed): version number for CoCoA5 snapshot release?

should we have finer numbering?
such as cocoa-5.3.3b? Anna Maria Bigatti

14:24 Bug #1512 (Resolved): Package with unexpected EOF

I think I have fixed it: it now produces this error report:... John Abbott

12:30 Design #1545: CoeffOfTerm: in CoCoALibSupplement

The code is there, currently commented out.
What we have occasion to use it and test speed in a real contest (when w... Anna Maria Bigatti

12:01 Design #1544: CoCoA coding conventions for parser/interprer?

Discussion with John: OK, updating the style "as we go".
Keep *@theRing@* & co. for *@intrusive_ptr@* (at least to... Anna Maria Bigatti

11:55 Design #1546 (In Progress): Improve 'describe' or 'print' for a function

If the fn comes from a package, can the name of the pkg be given (perhaps in a comment)? John Abbott

09:38 Design #1546: Improve 'describe' or 'print' for a function

Anna Maria Bigatti wrote:
> Maybe we could have @print/print .. on ..@ actually printing the function.
I have it ... Anna Maria Bigatti

11:53 Feature #1174 (In Progress): package of a function --> of an identifier!

Anna Maria Bigatti

11:48 Feature #1174: package of a function --> of an identifier!

Anna has a prototype in @coclib.cpkg5@. Currently commented out -- how long has it been there??
If it were built-... John Abbott

09:41 Feature #1549 (In Progress): Add sagbi package

I have a package ready for computing sagbi bases.
Confirm syntax and write manual. Anna Maria Bigatti