On Monday 10 November 2008, Thomas Kahle wrote:
> Hi,
>
> here is another try.
>
> sage: R = QQ['a,b,c,w,x,y,z']
> sage: (a,b,c,w,x,y,z) = R.gens()
> sage: I = (x^5-a*b*c^3, x^7-w^5*a^5*b^5, b*c^3-a^7, \
> b^2*a^3*c^5*x-y*z*w^2, x*y*z-w*z^2*a*b, b*x-a*w*z^9)*R
> sage: time _ = I.radical()
> CPU ti
> Well, given that it works the way I want it on your machine I will
> consider that a minor problem then :)
To make sure I just checked on sage.math (64-bit, Debian/GNU Linux, 1.8Ghz):
Singular:
real0m36.738s
user0m34.946s
sys 0m1.784s
Sage:
real0m39.919s
user0m1.796s
sys
On Mon, 2008-11-10 at 16:27 +, Martin Albrecht wrote:
> On Monday 10 November 2008, Thomas Kahle wrote:
> > Hi,
> >
> > here is another try.
> >
> > sage: R = QQ['a,b,c,w,x,y,z']
> > sage: (a,b,c,w,x,y,z) = R.gens()
> > sage: I = (x^5-a*b*c^3, x^7-w^5*a^5*b^5, b*c^3-a^7, \
> > b^2*a^3*c^5*x-y*z
Hi,
here is another try.
sage: R = QQ['a,b,c,w,x,y,z']
sage: (a,b,c,w,x,y,z) = R.gens()
sage: I = (x^5-a*b*c^3, x^7-w^5*a^5*b^5, b*c^3-a^7, \
b^2*a^3*c^5*x-y*z*w^2, x*y*z-w*z^2*a*b, b*x-a*w*z^9)*R
sage: time _ = I.radical()
CPU times: user 0.21 s, sys: 0.05 s, total: 0.26 s
Wall time: 41.03 s
On Monday 10 November 2008, Thomas Kahle wrote:
> Hi again, thanks for your help
>
> > You are definitely not using libSingular but the Singular pexpect
> > interface. libSingular is the C++ interface to a subset of Singular (the
> > kernel).
>
> Then, how do I use libSingular ?
> Is it used if wo
Hi again, thanks for your help
> You are definitely not using libSingular but the Singular pexpect interface.
> libSingular is the C++ interface to a subset of Singular (the kernel).
Then, how do I use libSingular ?
Is it used if work directly with the types implemented in sage, like
R = QQ['x,
On Monday 10 November 2008, Thomas Kahle wrote:
> Dear all,
> I'm curious about performance of Singular computations which are run
> from sage:
>
> I tried the following test:
>
> ---
> cat singulartest.sage
> R = singular.ring(0,'(a,b,c,w,x,y,z)','lp');
> I = singular.ideal('x5-abc3', 'x7-w5a5b5'
