[Edu-sig] Math in a Browser

[Jurgis Pralgauskis]

have you tried DragMath ?
http://www.dragmath.bham.ac.uk/demo.html
http://docs.moodle.org/en/DragMath_equation_editor
http://sourceforge.net/projects/dragmath/

On Wed, Apr 8, 2009 at 6:55 PM, kirby urner <kirby.urner at gmail.com> wrote:
> On Wed, Apr 8, 2009 at 8:20 AM, michel paul <mpaul213 at gmail.com> wrote:
>> SAGE is awesome.  I highly recommend it.  Recently I've been looking at it
>> more intently with the idea of using in math classes.
>>
>
> We've been hoping to get the Sage folks from Seattle to present at
> PPUG Portland.
>
> One reason I encourage core Python for more elementary courses is I'm
> wanting to open a window into the language itself, not an application
> written in that language.  "Staying close to the metal" sounds funny
> in this context, given it's a VHLL.
>
> That being said, Sage encourages writing in core Python, then working
> the API for graphics.  I recommend creating a free user account and
> testing it over the web by pulling up some already published
> activities e.g.:
>
> v2 of three famous plots of chaos
> http://www.sagenb.org/home/pub/20/
>
> In terms of selling your department on the relevance of Python to math
> learning, I think Sage is a significant asset, something to show and
> tell about.
>
> Here's all you need to plot a Mandelbrot set:
>
> #Mandelbrot set: the final plot is a subset of the complex plane;
> #the color at point c is porportional to the number of iterations that
> #the discrete dynamical system z->z^2+c takes to leave a circle around
> #the origin when z0=0
>
> N=int(200)        #resolution of the plot
> L=int(50)        #limits the number of iterations
> x0=float(-2); x1=float(1); y0=float(-1.5); y1=float(1.5)  #boundary of
> the region plotted
> R=float(3)        #stop after leaving the circle of radius R
> zero = int(0)
> m=matrix(N,N)
> for i in range(N):
>   for k in range(N):
>       c=complex(x0+i*(x1-x0)/N, y0+k*(y1-y0)/N)
>       z=zero
>       h=zero
>       while (h<L) and (abs(z)<R):
>           z=z*z+c
>           h+=1
>       m[i,k]=h
> matrix_plot(m, cmap='hsv')
>
> That's a lot shorter than my implementation with PIL:
>
> http://www.4dsolutions.net/ocn/fractals.html
> http://www.4dsolutions.net/ocn/lorentz.html
>
> There's also Lorentz Attractor and Feigenbaum diagram, woo hoo!
>
> Kirby
> _______________________________________________
> Edu-sig mailing list
> Edu-sig at python.org
> http://mail.python.org/mailman/listinfo/edu-sig
>



-- 
Jurgis Pralgauskis
tel: 8-616 77613;
jabber: jurgis at akl.lt; skype: dz0rdzas;
Don't worry, be happy and make things better ;)
http://sagemath.visiems.lt