[sage-support] Re: Why solve(5^( x -1) == (0.04)^(2*x), x) returns empty set?

2014-11-28 Thread Jakob Kroeker
> > Other opinions? If everybody agrees, I will open a ticket. >> > > Please do! Thanks! > here is the corresponding ticket: http://trac.sagemath.org/ticket/17412 -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this gr

Re: [sage-support] Re: How to free memory used by object?

2014-11-28 Thread Jori Mantysalo
On Wed, 26 Nov 2014, Simon King wrote: If it is not collectable by Python's cyclic garbage collector, then there is a bug. Can you open a trac ticket for it, putting me as Cc? Now I don't understand at all. I modify the code just to write memory usage in the middle of loop --- and there is no

Re: [sage-support] Re: Porting one Python code to a Sage one

2014-11-28 Thread Christophe Bal
Hello. There is two points of view here. 1. Using Python for math, and in this case, the less technic of programmation is used and the best it is. This is more true with young students. Sage is a great tool for that ! I definitely love it ! 2. Using Python for starting programmation a

Re: [sage-support] Re: Porting one Python code to a Sage one

2014-11-28 Thread William Stein
On Fri, Nov 28, 2014 at 8:39 AM, Christophe Bal wrote: > Hello. > > There is two points of view here. > > Using Python for math, and in this case, the less technic of programmation > is used and the best it is. This is more true with young students. Sage is a > great tool for that ! I definitely l

[sage-support] export 3D three.js graphics?

2014-11-28 Thread Dan Drake
Hi, If I have a 2D plot, I can save it to an image file and then include that image on any web page I like. Is there a corresponding way to export a three.js plot so that I can include it on a web page? Thanks, Dan -- --- Dan Drake - www.math.wisc.edu/~ddrake/ --- -- You received

[sage-support] Re: fast_callable of sybolyc expression with no variables

2014-11-28 Thread Nils Bruin
On Monday, November 24, 2014 11:19:40 AM UTC-8, Jesús Torrado wrote: > > Hi there, > > I am using fast_callable in order to pass numpy arrays to symbolic > expressions, as suggested [here]( > http://ask.sagemath.org/question/8383/using-symbolic-expressions-with-numpy-arrays/ > ) > > I encountered

Re: [sage-support] export 3D three.js graphics?

2014-11-28 Thread John Cremona
I would like to know this too. John On 28 November 2014 at 17:43, Dan Drake wrote: > Hi, > > If I have a 2D plot, I can save it to an image file and then include > that image on any web page I like. > > Is there a corresponding way to export a three.js plot so that I can > include it on a web pa

Re: [sage-support] export 3D three.js graphics?

2014-11-28 Thread William Stein
- William Stein (cell phone) On Nov 28, 2014 9:46 AM, "Dan Drake" wrote: > > Hi, > > If I have a 2D plot, I can save it to an image file and then include > that image on any web page I like. > > Is there a corresponding way to export a three.js plot so that I can > include it on a web page? > Wha

Re: [sage-support] export 3D three.js graphics?

2014-11-28 Thread Dan Drake
On Fri, 28 Nov 2014 at 12:14PM -0800, William Stein wrote: > What precisely do you mean by "a three.js plot"? Something like http://sagecell.sagemath.org/?z=eJwrULBVyMnMS9WI1jDQAUJNHQUNQx0g1IzV5OUqyShKTc0q1ijQBADJxQot&lang=sage or var('x y') plot3d(sin(x + y),(x,-10,10),(y,-10,10), threejs=true

Re: [sage-support] export 3D three.js graphics?

2014-11-28 Thread William Stein
On Nov 28, 2014 12:45 PM, "Dan Drake" wrote: > > On Fri, 28 Nov 2014 at 12:14PM -0800, William Stein wrote: > > What precisely do you mean by "a three.js plot"? > > Something like > > http://sagecell.sagemath.org/?z=eJwrULBVyMnMS9WI1jDQAUJNHQUNQx0g1IzV5OUqyShKTc0q1ijQBADJxQot&lang=sage > > or > >

[sage-support] Re: symbolic vector calculus

2014-11-28 Thread Sherif
Hi all, I came to post a similar question and stumbled upon this discussion, which I realize is from 2008 - perhaps some of this functionality has been developed by now! In any case, I'm brand new to Sage, as in I haven't used it at all yet though I'm excited to try it. So, if my question is a