CoCoA » CoCoALib

22 Oct 2014

14:39 Bug #593: Temporary directories used during configuration

Christof reported problems with my one of my shell scripts which uses the @trap@ facility to guarantee proper cleanin... John Abbott

15 Oct 2014

12:13 Bug #631: Ambiguous: rank for matrix (in ex-matrix1.C)

John Abbott wrote:
> After speaking to Anna by phone, I have changed the name of @rank@ into @rk@.
>
> I'm ready ... Anna Maria Bigatti

12:06 Bug #631: Ambiguous: rank for matrix (in ex-matrix1.C)

John Abbott wrote:
> I now believe the ambiguity would disappear if the entire function were placed inside @namespac... Anna Maria Bigatti

14 Oct 2014

21:34 Design #619: Modulus (for CRTMill) ambiguous

(see #631 comment 5) I think the problem goes away if the code is put inside @namespace CoCoA@.
John Abbott

18:26 Design #619: Modulus (for CRTMill) ambiguous

Assuming my explanation in the _correction_ in comment 1 is correct, then the STL people could break our code at any ... John Abbott

18:22 Design #619: Modulus (for CRTMill) ambiguous

John Abbott wrote:
> I think the C++ rules will compel us to change name -- asking the user to write @CoCoA::modulus... Anna Maria Bigatti

18:18 Design #619 (In Progress): Modulus (for CRTMill) ambiguous

I think the C++ rules will compel us to change name -- asking the user to write @CoCoA::modulus@ every time is not ac... John Abbott

21:32 Bug #631: Ambiguous: rank for matrix (in ex-matrix1.C)

I now believe the ambiguity would disappear if the entire function were placed inside @namespace CoCoA@. We could mo... John Abbott

21:25 Bug #631: Ambiguous: rank for matrix (in ex-matrix1.C)

Strictly speaking the proper solution to the problem is to put a @using CoCoA::rank;@ inside the function which will ... John Abbott

20:03 Bug #631: Ambiguous: rank for matrix (in ex-matrix1.C)

After speaking to Anna by phone, I have changed the name of @rank@ into @rk@.
I'm ready to do CVS check in, but fi... John Abbott

18:26 Bug #631: Ambiguous: rank for matrix (in ex-matrix1.C)

John Abbott wrote:
> I think the problem arises because @rank(M)@ entails a user type conversion from @matrix@ to @C... Anna Maria Bigatti

18:23 Bug #631 (In Progress): Ambiguous: rank for matrix (in ex-matrix1.C)

I think the problem arises because @rank(M)@ entails a user type conversion from @matrix@ to @ConstMatrixView@.
@s... John Abbott

13 Oct 2014

23:00 Bug #593 (In Progress): Temporary directories used during configuration

I now think that a good solution would be to put tmpdirs in @configuration/TMP/@. That way they can all be "cleaned"... John Abbott

20:47 Feature #630: Add graeffe function?

If I recall correctly, Bini said that graeffe can also be done for polynomial systems. Right now I cannot see when i... John Abbott

26 Sep 2014

15:40 Bug #631 (Closed): Ambiguous: rank for matrix (in ex-matrix1.C)

Apple LLVM version 6.0 (Laura's new computer) reports that @rank@ is ambiguous in @ex-matrix1.C@
John Abbott

25 Sep 2014

16:10 Feature #630 (Closed): Add graeffe function?

Add a new fn @graeffe@ which transforms a polynomial into one whose roots are the squares of the root of the original... John Abbott

23 Sep 2014

16:30 Feature #627: Gaussian integer and rationals ZZi, QQi

Recalling that every ring (except @RingZZ@) in CoCoALib has a @BaseRing@ and an "extension type". What should the @B... John Abbott

11:40 Feature #627: Gaussian integer and rationals ZZi, QQi

What should be the internal representation of an element of @QQ[i]@?
# a pair of @BigRat@ values (real and imag part... John Abbott