CoCoA » CoCoALib

20 Jun 2020

21:42 Design #1465 (In Progress): mul(MAT,MAT,MAT)

I have commented out the fn, and modified *@power(MAT,n)@*.
Everything compiles and runs fine.
I suggest eliminat... John Abbott

21:40 Design #1465 (In Progress): mul(MAT,MAT,MAT)

There is a fn *@mul(MAT,MAT,MAT)@*
Is it any use?
The impl is exception-safe, so internally it creates a new mat,... John Abbott

19 Jun 2020

20:27 Design #1462: Change CoCoA_ERROR into CoCoA_THROW_ERROR

I have removed the macro *@CoCoA_THROW@* for the following reasons:
* a macro is an ugly implementation trick
* it ... John Abbott

09:41 Design #1464 (New): What is the difference between InterruptReceived and InterruptedBySignal

It seems to be superfluous to have both *@InterruptReceived@* and *@InterruptedBySignal@*.
Review the design/impl; a... John Abbott

17 Jun 2020

21:02 Design #1462 (Feedback): Change CoCoA_ERROR into CoCoA_THROW_ERROR

I have updated doc too. Also checked that everything works with debugging active.
John Abbott

20:08 Design #1462: Change CoCoA_ERROR into CoCoA_THROW_ERROR

I have changed all calls to @CoCoA_ERROR@ into @CoCoA_THROW_ERROR@; I do think the code is a bit more readable with @... John Abbott

20:19 Design #1463 (In Progress): SmoothFactor: use FactorMultiplicity

The current implementation of @FactorMultiplicity@ makes it hard to use inside @SmoothFactor@ (because it returns onl... John Abbott

16 Jun 2020

20:03 Design #1462 (In Progress): Change CoCoA_ERROR into CoCoA_THROW_ERROR

I have started. Defined the new macros @CoCoA_THROW_ERROR@ (drop in replacement for current @CoCoA_ERROR@).
Also de... John Abbott

16:55 Design #1462 (Closed): Change CoCoA_ERROR into CoCoA_THROW_ERROR

I suggest changing name of the macro to *@CoCoA_THROW_ERROR@* so that it i obvious to the reader that the error objec... John Abbott

20:01 Feature #1457 (Feedback): Make SmoothFactor interruptible

Speed test was OK. Also improved impl of @SmoothFactor@, but see #1463.
Checked in.
John Abbott

16:29 Feature #1457 (Resolved): Make SmoothFactor interruptible

The problem is that @SmoothFactor@ has two (nested) loops either of which can be slow; but I had inserted a call to @... John Abbott

19:56 Design #1463 (Closed): SmoothFactor: use FactorMultiplicity

@SmoothFactor@ contains almost a duplicate implementation of @FactorMultiplicity@.
Tidy up: Make @SmoothFactor@ ca... John Abbott

19:54 Slug #1170: SmoothFactor: slow when a factor is found

The given example is no longer slow.
The trick of testing for primality is used only when @RemainingFactor@ is not t... John Abbott

16:45 Bug #1458 (Rejected): Redesign interrupt mechanism?

What I wrote in comment 5 was perhaps once correct, but not any longer.
This bug did not exist where I thought it ex... John Abbott

25 May 2020

10:10 Design #1460: Name of TensorMat; change to KroneckerProd?

John Abbott wrote:
> Another matter is *where* to put the defn of the function.
> Currently @TensorMat@ is defined ... Anna Maria Bigatti

09:32 Design #1460: Name of TensorMat; change to KroneckerProd?

Another matter is *where* to put the defn of the function.
Currently @TensorMat@ is defined in @MatrixSpecial.C@; I ... John Abbott

23 May 2020

14:45 Design #1460: Name of TensorMat; change to KroneckerProd?

I re-implemented the fn because I had forgotten (or didn't realise) that it was already in CoCoALib.
At the very lea... John Abbott

14:43 Design #1460 (Closed): Name of TensorMat; change to KroneckerProd?

CoCoALib has a function called @TensorMat@.
The operation is also known as *Kronecker product* of matrices. The wik... John Abbott