On 06/30/2014 01:01 AM, Waldek Hebisch wrote:
> I am thinking what to do with PolynomialFactorizationExplicit.

Just a short comment.

For complicated problems there is no "perfect" algorithm. So the general
approach is to cleanly implement several algorithms that work best for
certain cases and then have a wrapper that tries to decide upon cheaply
computable criteria which of the implemented algorithms should be
started for a particular problem. (I'm certainly not telling you
anything new here.)

As for recombination of factors...
It is not an option for me to return wrong results without telling the
user. Not even if there is loss in efficiency. In other words, if a
function claims to return a factorization, then it shouldn't return
something else. However, if the specification said that the returned
object might need a combination of factors to actually get the right
thing then the user can decide whether he wants to call
"recombineFactors". I.e. it's just a question of documenting properly
what a function actually does.

Ralf

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