Hi Travis,

On 2017-09-02, Travis Scrimshaw <tsc...@ucdavis.edu> wrote:
> sage: R.<x,y,z,t> = ZZ[]
> sage: %time f = (1+x+y+z+t)^30
> CPU times: user 232 ms, sys: 0 ns, total: 232 ms
> Wall time: 241 ms
> sage: g = f+1
> sage: %time temp = f * g
> CPU times: user 16min 34s, sys: 8 ms, total: 16min 34s
> Wall time: 16min 34s
> sage: 16 * 60 + 34
> 994
>
> From Ulrich's timings, it seems like we are still loosing quite a lot in 
> converting to/from singular.

Is it really the *conversion*? I wouldn't be surprised if that example
would take a long time in Singular without a conversion. The polynomials
in Singular are not optimised for arithmetics but for Gröbner basis
computations, which (as I was told some time ago) are two totally
different things.

Best regards,
Simon

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