[sage-support] Re: autoeval in sagecell

2013-09-07 Thread Jason Grout
On 9/7/13 11:30 AM, davidp wrote: I am wondering why only the first cell in the following is automatically evaluated: http://people.reed.edu/~davidp/211/sage/sagecell/tangent_plane.html I have autoeval set to 'True' and notice that if I add 1+1 at the end, it is automatically evaluated. Th

[sage-support] Re: Trouble saving graphics

2013-09-07 Thread Ed Scheinerman
I found a temporary workaround. Save as .eps (which works fine) and then use epstopdf to convert to .pdf. On Saturday, September 7, 2013 12:01:40 PM UTC-4, P Purkayastha wrote: > > It seems saving to pdf is broken on sage-5.10 onwards. Works till > sage-5.9. The problem is only in graphs. Norma

Re: [sage-support] Sage installation

2013-09-07 Thread Ivan Andrus
On Sep 2, 2013, at 7:32 AM, kcrisman wrote: > On Monday, September 2, 2013 9:12:33 AM UTC-4, arshpreet singh wrote: > On Mon, Sep 2, 2013 at 5:05 PM, casper sky wrote: > Hello, I want to know that can I install Sage on my iPad as I'm using it on > my mac ? > > yes you can see the link below: >

[sage-support] Problems with cell not refreshing in notebook

2013-09-07 Thread Paul Zeitz
I am using Mac OS 10.8 and Sage 5.11 in a browser (Safari or Chrome). I recently noticed that whenever I do a calculation in a notebook, and hit shift-enter, nothing happens (green line at the left, no output). After some experimentation, I found that refreshing the browser (command-R) solves t

[sage-support] autoeval in sagecell

2013-09-07 Thread davidp
I am wondering why only the first cell in the following is automatically evaluated: http://people.reed.edu/~davidp/211/sage/sagecell/tangent_plane.html I have autoeval set to 'True' and notice that if I add 1+1 at the end, it is automatically evaluated. Thanks in advance for any suggestions

[sage-support] Re: Trouble saving graphics

2013-09-07 Thread P Purkayastha
It seems saving to pdf is broken on sage-5.10 onwards. Works till sage-5.9. The problem is only in graphs. Normal plots work fine. I have opened http://trac.sagemath.org/ticket/15173 to track this. On 09/07/2013 09:06 PM, Ed Scheinerman wrote: I'm using Sage 5.11 on a Mac I've been used to cr

Re: [sage-support] The results of some integration test.

2013-09-07 Thread Peter Luschny
>Your methodology for "diffs back" assumes >correctly computing the derivative and correctly >comparing symbolic expressions and for the latter >counterexamples are known Yes. This is just an indicator of possible problems, nothing more. "diffs back" checks f == 0 which is incorrect a priori, it s

[sage-support] Trouble saving graphics

2013-09-07 Thread Ed Scheinerman
I'm using Sage 5.11 on a Mac I've been used to creating graphs and then saving them as PDF's for inclusion in papers. Using code like this: sage: g = graphs.PetersenGraph() sage: pic = g.plot() sage: pic.save('pete.pdf') But now it just throws a bunch of errors: ---

Re: [sage-support] The results of some integration test.

2013-09-07 Thread Georgi Guninski
Interesting experiment. Your methodology for "diffs back" assumes correctly computing the derivative and correctly comparing symbolic expressions and for the latter counterexamples are known [1] bool( sqrt((a+b)^2) == sqrt(a^2) + sqrt(b^2) ) True btw, I get: 'sage.rings.complex_interval.ComplexI

Re: [sage-support] Re: The results of some integration test.

2013-09-07 Thread Peter Luschny
> I have put the test suite in a Sage worksheet and added some comments. > I have moved the worksheet. It is now the public project 'CharlwoodFifty' at https://cloud.sagemath.com/ Unfortunately I do not know how to give a link to this project. Peter -- You received this message because yo

[sage-support] Symbol, commutative=False

2013-09-07 Thread Dumont Thierry
Something I do not understand... from sympy import Symbol t=Symbol("t",commutative=True) A=Symbol("A",commutative=False) B=Symbol("B",commutative=False) So, now, I do: ee=(t*t/2)*(A+B)*(A+B) ee.expand() gives: t**2*A*B/2 + t**2*A**2/2 + t**2*B*A/2 + t**2*B**2/2 which is what I was waiting fo