CoCoA

08 Jun 2016

15:46 CoCoALib Bug #756: frobby (v0.9.0) does not compile with g++-4.8

Could you write the changes in the documentation @ExternalLibs-Frobby.txt@?
Anna Maria Bigatti

06 Jun 2016

00:26 CoCoA-5 Feature #888: Escaped newline to allow a long line to be split into several "physical lines"

Unfortunately there are probably some places where backslash-newline cannot be blindly inserted without changing the ... John Abbott

00:15 CoCoA-5 Feature #888: Escaped newline to allow a long line to be split into several "physical lines"

I have just checked what happens with @bash@ (which also uses the backslash-newline convention): it may appear inside... John Abbott

00:05 CoCoA-5 Feature #888: Escaped newline to allow a long line to be split into several "physical lines"

I was surprised not to find this issue already in redmine; I'm sure we have talked about it (in the distant past... p... John Abbott

00:00 CoCoA-5 Feature #888 (New): Escaped newline to allow a long line to be split into several "physical lines"

Some languages allow long lines to be split into several "physical lines" by inserting an escaped-newline which is si... John Abbott

23:50 CoCoA-5 Slug #875 (In Progress): Interpreter is too slow reading a big polynomial

I have taken one of Mario's big polys: this one is about 6Mbyte when printed out.
I tried to ways of converting th... John Abbott

21:58 CoCoA-5 Slug #875: Interpreter is too slow reading a big polynomial

The solution to use @ReadExpr(P, "poly-as-a-string")@ works tolerably well from the point of view of the interpreter,... John Abbott

15:37 CoCoALib Feature #206: Matrix equation solving: LinKer

For aesthetics: now changes sign to the LinKer matrix (so that the entries corresponding to the "pivots" are "1" inst... Anna Maria Bigatti

13:47 CoCoALib Support #887: My first compilations with clang

John Abbott wrote:
> I like the idea of adding some hints about compiling external libraries. I already have some n... Anna Maria Bigatti

13:31 CoCoALib Support #887: My first compilations with clang

I like the idea of adding some hints about compiling external libraries. I already have some notes (but perhaps they... John Abbott

13:28 CoCoALib Support #887: My first compilations with clang

The warnings about infinite recursion correspond to code which has a comment @BUG BUG BUG@; I suppose I'll fix it wh... John Abbott

01 Jun 2016

17:05 CoCoALib Support #887: My first compilations with clang

CoCoA-5 running!!... Anna Maria Bigatti

31 May 2016

15:55 CoCoALib Support #887: My first compilations with clang

... another thing I don't really know the meaning of:... Anna Maria Bigatti

15:49 CoCoALib Support #887: My first compilations with clang

I expect this is well under control ;-)... Anna Maria Bigatti

15:27 CoCoALib Support #887: My first compilations with clang

... I'm not quite sure what this refers to...... Anna Maria Bigatti

15:16 CoCoALib Support #887: My first compilations with clang

*This is just a local problem with files not in cvs*
The file @/include/CoCoA/TmpSBStats.H@ contains the line... Anna Maria Bigatti

15:14 CoCoALib Support #887 (Closed): My first compilations with clang

I've just updated to MacOS 10.11 (from 10.6).
Here I note the problems and remarks on the first compilations. Anna Maria Bigatti

25 May 2016

17:01 CoCoALib Slug #881: ReadExpr is too slow on large polys

Using the profiler on a linux box I noticed that @DistrMPolyInlPP::myPushFront@ was using surprisingly much time. I ... John Abbott

16:57 CoCoALib Feature #885: IsIrred3: fast 3-way irred test (returning bool3)

The idea of @IsIrred3@ was created because of some computations Mario needed to do with multivariate polynomials, so ... John Abbott

11:13 CoCoALib Feature #885 (In Progress): IsIrred3: fast 3-way irred test (returning bool3)

Some questions:
* *(A)* what should the function be called? Is @IsIrred3@ a reasonable name?
* *(B)* what should t... John Abbott

16:49 CoCoALib Design #846: IsIrred: correct design?

The simplest design is to make @IsIrred@ call @IsIrred3@; this somehow equates calling @IsIrred3@ to handling the tri... John Abbott

13:43 CoCoALib Design #846 (In Progress): IsIrred: correct design?

I think a first version of @IsIrred@ should give error if the ring is a field; if it turns out that this is inconveni... John Abbott

24 May 2016

17:27 CoCoALib Feature #885 (In Progress): IsIrred3: fast 3-way irred test (returning bool3)

Implement an irreducibility test @IsIrred3@ which is guaranteed to be fast, but returns a @bool3@.
John Abbott

15:25 CoCoALib Slug #884: DistrMPolyInlPP::myPushFront and DistrMPolyInlPP::myPushBack inefficient if arg is a PP

I wrote a special reading fn for polynomials (using a "private" linearization). It was not as fast as I hoped, and p... John Abbott

15:20 CoCoALib Slug #884 (New): DistrMPolyInlPP::myPushFront and DistrMPolyInlPP::myPushBack inefficient if arg is a PP

In the class @DistrMPolyInlPP@ the mem fns @myPushFront@ and myPushBack@ can accept raw coeff and raw pp, *BUT* the i... John Abbott

18 May 2016

13:44 CoCoALib Slug #881 (Resolved): ReadExpr is too slow on large polys

I have modified @ReadExprInSparsePolyRing@ so that sums of terms are handled specially: the terms are simply appended... John Abbott

11 May 2016

14:48 CoCoALib Slug #881: ReadExpr is too slow on large polys

I reran the test to read Mario's polynomial: now it takes about 0.4s (with the "wrong" term-ordering), and about 0.25... John Abbott

14:32 CoCoALib Slug #881: ReadExpr is too slow on large polys

I have now finished the main changes to @DistrMPolyInlPP@, and especially @myAddClear@. Time to read a correctly ord... John Abbott

12:09 CoCoALib Slug #881: ReadExpr is too slow on large polys

I wrote a very hacked version which uses @PushBack@, and it went considerably faster (but it also gave SEGV on some e... John Abbott