Is it really necessary to factor?
(%i9) factor(x^10-1);
(out9) (x-1)*(x+1)*(x^4-x^3+x^2-x+1)*(x^4+x^3+x^2+x+1)
(%i10) signum(x^10-1);
(out10) signum(x^10-1)
Can you turn this off? Signum() does not use the result is many cases
anyway.
Rich
On Fri, Jan 29, 2010 at 12:42 AM, Richard Fateman
<fateman at cs.berkeley.edu>wrote:
>
>
>> What is maxima doing here that takes so long?
>>
> It is calling factor.
>
> do :lisp (trace factor)
>
>
> Why? probably looking to take out a sign from one of the factors?
>
> RJF
>
>
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