Slava wrote:
> Can Sage solve inequalities, or it`s not implemented yet,
> or it is just in plans?
Sage has qepcad as an optional package, which provides a very nice way
to solve certain kinds of inequalities. Echoing William's reply,
though, what sorts of inequalities are you trying to solve
On Mon, Jan 5, 2009 at 12:46 PM, Shing Hing Man wrote:
>
> Thanks for the reply!
> I will upgrade.
Thanks. Note that we haven't released sage-3.2.3 yet, so "sage
-upgrade" won't get you that version. We intend to release it today
or tomorrow, and post binaries within 2-3 days.
William
--~--~
On Mon, Jan 5, 2009 at 2:35 PM, wrote:
> In a message dated 1/4/2009 10:13:33 P.M. Eastern Standard Time,
> tim.la...@gmail.com writes:
>
> You could display the notebooks with Mathematica Player and if you want
> to do more with them, try and convert them to Sage.
>
> Thanx for the suggestion.
In a message dated 1/4/2009 10:13:33 P.M. Eastern Standard Time,
tim.la...@gmail.com writes:
You could display the notebooks with Mathematica Player and if you want
to do more with them, try and convert them to Sage.
Thanx for the suggestion. Mathematica Player is an alternative, how
Thanks for the reply!
I will upgrade.
Shing
On Jan 4, 8:46 pm, "John Cremona" wrote:
> I tried this in 3.2.3.final and it works fine:
>
> sage: a,b = matrix(QQ,[[0,1],[-4,0]]).eigenvalues(); a,b
> (2*I, -2*I)
> sage: a in RR
> False
> sage: b in RR
> False
>
> so perhaps you should upgrade?
>
>
On Jan 3, 4:18 pm, Robert Bradshaw
wrote:
> On Jan 3, 2009, at 4:10 PM, calcp...@aol.com wrote:
>
>
>
> > sage: plot(x^2*log(x,2)-1, 0,2)
> > [nice plot so you can understand what is going on]
>
> > sage: find_root(x^2*log(x,2)-1,1, 2)
> > 1.4142135623730951
> > <<
>
> > Hi, I'm trying out SAGE
On Jan 4, 2009, at 11:47 AM, ggrafendorfer wrote:
> Hi Robert,
> thanks for your answer,
> I not sure if I know the difference between coercion and conversion,
> could you explain it to me?
A coercion is implicit and happens, for example, when you do arithmetic.
sage: 1 + 1/2# 1 is coerced
I recently refereed a patch for a function called plot_region (I think),
which *graphs* inequalities. I'm not sure that is exactly what you want
or if it is included into sage yet.
On Mon, Jan 5, 2009 at 9:29 AM, Slava wrote:
>
> Can Sage solve inequalities, or it`s not implemented yet,
> or it
On Mon, Jan 5, 2009 at 6:29 AM, Slava wrote:
>
> Can Sage solve inequalities, or it`s not implemented yet,
> or it is just in plans?
>
Which inequalities do you want to solve?
William
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