On Wed, 13 Jul 2011 19:01:40 -0700 (PDT)
Steven Pollack stevenlawrencepoll...@gmail.com wrote:
I hope this code helps anyone trying to do any work in Sage with the
ultraspherical(n,a,x) function.
Note that there is an experimental patch on the issue tracker which
improves orthogonal
Hello,
how do Sage analyse the rafters in ratpoly.t = PolynomialRing(QQ) ? Where
I could find the method used in the source of Sage ?
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Hi list,
i have given a finite set of points (lets call it V \subset ZZ^n) and
have to express some other points p_0,\dots,p_k \in ZZ^n as affine (or
convex) combination of elements from V.
How can i do this?
I tried it with span(ZZ,V) but that leads to ZZ^n and the p_i are
written with respect to
Thank you for pointing that out. I didn't do my homework before I started so
I probably duplicated efforts.
I will take a look at that trac ticket today.
David Monarres
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Just looked over the code posted on in your patch. It is almost exactly what
I did, but I like the way that you handled options better. I haven't gotten
a full grasp of the * and ** argument magic.
I can start here and look into extending it. Any ideas on what you would
want? Or what else
Hey Jason,
I added some code to handle a the axis computation for a list of datasets
since the help string says that this was something to be implemented. Here
it is:
http://dl.dropbox.com/u/1768136/sage-main_rev15695.patch
David
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Based on my experience, it seems to be a Firefox 5 issue, I just got
it on a fresh install of Windows 7 Enterprise 64-bit and Firefox
5.0.1. Given that e.g. google accounts behave normally, it still can
indicate issues with Sage authentication mechanism that gets broken in
certain circumstances.
On Thu, Jul 14, 2011 at 7:39 PM, Johannes dajo.m...@web.de wrote:
Hi list,
i have given a finite set of points (lets call it V \subset ZZ^n) and
have to express some other points p_0,\dots,p_k \in ZZ^n as affine (or
convex) combination of elements from V.
How can i do this?
I tried it with
On Jul 13, 8:32 pm, William Stein wst...@gmail.com wrote:
Sage is probably just using some completely generic general
implementation of kernel for matrices.
Yes, that is correct. It's a totally generic routine and it stands a
very good chance of giving an incorrect result with entries from
How to find the nearest integer (+ve or -ve) of a rational number (P/Q)
where P,Q are very large integers?
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How to find the nearest integer (+ve or -ve) of a rational number (P/Q)
where P,Q are very large integers?
You could use the .round method of rationals.
sage: q = 17+1/2+1/11**1000
sage: RR(q.numerator()), RR(q.denominator())
(2.48685403212345e10413928, 1.42105944692768e10413927)
sage:
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