[sage-support] Re: Strange behaviour of find_maximum_on_intervall

2009-05-23 Thread Laurent
> Do you know about _fast_float_? It makes it vastly faster to do > brute force evaluation (it'll easily give you a factor of 10 speedup). > > No, I don't know _fast_float. And I was ignoring srange too :) You learned me two thinks. Thanks Laurent > Ignore the wall time below: > > sage: f

[sage-support] Re: How to return a tangent line.

2009-05-23 Thread Laurent
Jose Guzman ha scritto: > Hi everybody, > > I am pretty new to symbolic math and Sage but I love it. > > I am trying create a function which returns an tangent line at a given > point (xpoint) in a function f(x) already known as follows: > > var('x') > f(x): x**2 > > def tangent(xpoint): > >

[sage-support] Re: Citing Sage- 2nd try

2009-05-23 Thread William Stein
On Sat, May 23, 2009 at 8:34 AM, avra wrote: > > Hi Everyone, > > I have included the previous messages from William and David Joyner, > but I am including the published worksheets links right away. I am > looking to properly credit and cite anyone who worked on the things > that I used. It is sm

[sage-support] How to return a tangent line.

2009-05-23 Thread Jose Guzman
Hi everybody, I am pretty new to symbolic math and Sage but I love it. I am trying create a function which returns an tangent line at a given point (xpoint) in a function f(x) already known as follows: var('x') f(x): x**2 def tangent(xpoint): def secant(xpoint): # function of the for

[sage-support] Re: Strange behaviour of find_maximum_on_intervall

2009-05-23 Thread William Stein
On Sat, May 23, 2009 at 11:04 AM, Laurent wrote: > > >> There are two entries on the bug tracker related to this issue: >> >> http://trac.sagemath.org/sage_trac/ticket/2607 >> >> http://trac.sagemath.org/sage_trac/ticket/5960 >> >> I believe this would be a fairly easy fix for someone familiar wi

[sage-support] Sage 3.4.2 Lightweight LiveCD release and feedback.

2009-05-23 Thread Lucio Lastra
Hi everyone, Sage 3.4.2 Lightweight LiveCD has been released today. You can download it at: http://sage.math.washington.edu/home/luciolastra/sagelwlcd/latest/ It's greatly improved since last version thanks to Alfredo Portes and Rob Beezer who tried it out and recommended some changes. Greetin

[sage-support] How to find global maximum of a function of my on on an interval ?

2009-05-23 Thread moky
Hello once again. Due to a known bug on the function find_maximum_on_interval, one cannot use that function to find the global maximum of a function on an interval, Due to the fact that the function solve fails to provide all the solutions in the case of trigonometric functions, one cannot r

[sage-support] Re: Strange behaviour of find_maximum_on_intervall

2009-05-23 Thread Laurent
> There are two entries on the bug tracker related to this issue: > > http://trac.sagemath.org/sage_trac/ticket/2607 > > http://trac.sagemath.org/sage_trac/ticket/5960 > > I believe this would be a fairly easy fix for someone familiar with > knowledge of the relevant scipy methods. > > Well ..

[sage-support] Re: Strange behaviour of find_maximum_on_intervall

2009-05-23 Thread Burcin Erocal
Hi Laurent, On Sat, 23 May 2009 09:04:06 -0700 (PDT) Laurent Claessens wrote: > > Hello everybody > > -- > | Sage Version 3.4.1, Release Date: 2009-04-21 | > | Type notebook() for the GUI, and license()

[sage-support] Re: characters of the symmetric group

2009-05-23 Thread Franco Saliola
On Wed, May 13, 2009 at 12:43 AM, amps wrote: > > I see that there is a function to compute the character table of the > symmetric group, but is there one where you input two partitions and > it outputs the value of the character indexed by the first partition > evaluated at the second?  I have b

[sage-support] Strange behaviour of find_maximum_on_intervall

2009-05-23 Thread Laurent Claessens
Hello everybody -- | Sage Version 3.4.1, Release Date: 2009-04-21 | | Type notebook() for the GUI, and license() for information.|

[sage-support] Citing Sage- 2nd try

2009-05-23 Thread avra
Hi Everyone, I have included the previous messages from William and David Joyner, but I am including the published worksheets links right away. I am looking to properly credit and cite anyone who worked on the things that I used. It is small and not complex, but I would credit people where credit