Hello,
http://trac.sagemath.org/ticket/12455
gives me
*Trac detected an internal error:*
OSError: [Errno 2] No such file or directory: '/tmp/tmpfcOFO7'
Could an admin please have a look?
Regards,
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Dear Nils,
Thanks for your answer! Even if the symbolic integration techniques that maxima
uses cannot tackle this problem, it would be good if the computer could somehow
catch that there is a problem instead of returning the wrong answer.
Best wishes,
Anne
On 7/19/14 6:33 PM, Nils Bruin wrote:
Hi
On 19.07.2014 23:48, Jean-Pierre Flori wrote:
I can have a look next week.
Thanks!
Would you mind opening a ticket on trac for this?
http://trac.sagemath.org/ticket/16685
Best
Jonas
On Saturday, July 19, 2014 8:10:33 PM UTC+2, Jonas Jermann wrote:
Hi all
Could someone
On Saturday, July 19, 2014 2:47:12 PM UTC-7, Jean-Pierre Flori wrote:
>
> Or just to become patient enough to wait for the first MPIR configure run
> whose output is redirect into a file for further analysis to finish :)
> Telepathy would be nice though.
>
Maybe the MPIR spkg-install file shoul
I can have a look next week.
Would you mind opening a ticket on trac for this?
On Saturday, July 19, 2014 8:10:33 PM UTC+2, Jonas Jermann wrote:
>
> Hi all
>
> Could someone familiar with flint/sage enable flint's
> revert_series (for rational/integer polynomials)?
>
> (Sorry if it was already
Or just to become patient enough to wait for the first MPIR configure run
whose output is redirect into a file for further analysis to finish :)
Telepathy would be nice though.
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On Sat, Jul 19, 2014 at 8:22 AM, Nils Bruin wrote:
> Consider A+B where A is a polynomial in ZZ[x,y] and B is a power series in
> F_q[[x]] (finite field with q elements).
>
> Do you expect your CAS to make sense of that addition? Sage does. It
> returns an answer in F_q[[x]][y] (i.e., a polynomia
OS? Compiler version? I guess we'll first have to develop telepathy within
six months.
On Saturday, July 19, 2014 10:49:50 AM UTC-4, deSitter wrote:
>
> Hangs at the message
>
> "Checking what CFLAGS MPIR would use if they were empty"
>
> Must be manually interrupted.
>
> I check Sage every six
On Monday, July 1, 2013 11:37:02 AM UTC+2, I wrote:
>
> solve(abs((x-1)/(x-5)) <= 1/3, x)
>
[...]
> The main issue is that the result should be
>
> [[-1 <= x, x <= 2]]
>
I have found a way to get this! A little term massaging gives me the
equivalent:
sage: qepcad((x-1)^2 <= (1/3)^2 * (x-5)^2
Hi Sage folks! I gave that presentation on multiple dispatch at Strange
Loop last year. Since someone pointed this thread out to me and the topic
of multiple dispatch and type promotion is near and dear to my heart, I
thought I'd chime in. Maybe my comments will be of some use. (Btw, since
some
Hi all
Could someone familiar with flint/sage enable flint's
revert_series (for rational/integer polynomials)?
(Sorry if it was already implemented somewhere and I missed it).
Attached is a small, non-intrusive patch (done with help from IRC)
in that direction which simply adds series reversion
On Saturday, July 19, 2014 9:25:42 AM UTC-7, Anne Schilling wrote:
>
> Sage can solve this numerically:
>
> sage: g = lambda x : (1+e^(2*pi*I*x)).abs()
> sage: numerical_integral(g,0,1)
> (1.2732395447351625, 1.4155343563970746e-14)
> sage: n(4/pi)
> 1.27323954473516
>
> but not symbolically:
Hi!
David Bailey (http://www.davidhbailey.com/) showed Viviane, Travis, and myself
the
following oddity yesterday.
Take the integral
\int_0^1 \int_0^1 |e^{2\pi i x} + e^{2\pi i y}| dx dy
The answer should be 4/\pi.
Both Mathematica and Maple give 0 as an answer. Unfortunately, Sage/Maxima
als
On Saturday, July 19, 2014 5:43:57 AM UTC-7, defeo wrote:
> However, Julia multimethods are backed up by a powerful coercion
> system, so I do not understand the "step back" criticism.
>
> That comment wasn't made with respect to Julia, because that would be
comparing the coercion facilities of
Hangs at the message
"Checking what CFLAGS MPIR would use if they were empty"
Must be manually interrupted.
I check Sage every six months only to find that is still never builds
correctly. Maybe a new approach is needed. It's sort of comical at this
point. Then again, good mathers are usually
> I'm not sure multimethods alone are enough to solve issues with Sage's
> type system (e.g. coercion, where the result of a+b may happen in a
> completely new domain) but they could certainly help.
I purposedly said "many", and not "all", nor even "most". The most
important feature to a CAS missi
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