[IAEP] Working math graphs/plots

[Gary C Martin]

On 10 Dec 2008, at 18:41, Walter Bender wrote:

> I haven't looked at it in a while, but what plotting engine is built
> inside of the Calculator Activity?
>
> -walter

I think Reinier wrote his own little svg plot generator class called  
plotlib.py.

--Gary

> On Wed, Dec 10, 2008 at 11:28 AM, Gary C Martin  
> <gary at garycmartin.com> wrote:
>> I've been poking about for something like gnuplot, something python
>> friendly, with an idea to wrap it up into a simple Sugar activity to
>> allow basic (and advanced, but that would be not primary to the UI)
>> graph/plot experimentation. Now most of the things I've looked as so
>> far hit some road bump, usually needing full compile environment or
>> some weird dependancy I couldn't sort out, but yesterday I tried
>> matplotlib:
>>
>>       http://matplotlib.sourceforge.net/
>>
>> All you need is an internet connection, about 5Mb space, and not to  
>> be
>> scared of Terminal. Here's how you download and install it (tested on
>> an XO running 8.2-767):
>>
>>       sudo yum install python-matplotlib
>>
>> Python can now be used to generate all sorts of graphs, the quick way
>> to start experimenting is via ipython:
>>
>>       ipython -pylab
>>
>> And then try this for starters:
>>
>>       x = randn(1000)
>>       hist(x, 100)
>>
>> You'll be presented with the graph (10,000 gausian random numbers  
>> in a
>> histogram with 100 bins) in full screen (alt-esc or use frame icon to
>> close). Take a look at their gallery to see a wide range of much more
>> exciting examples:
>>
>>       http://matplotlib.sourceforge.net/gallery.html
>>
>> I'll probably experiment with this for a few weeks and then start
>> thinking about a simple/clean Sugar UI to expose the needed features.
>> I'm posting to IAEP incase anyone wants to chime in with some use
>> cases for our target demographics.
>>
>> --Gary
>>
>> P.S. I'm open to other (working) graph tool suggestions, if I've
>> missed something obvious.
>>
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>>
>
>
>
> -- 
> Walter Bender
> Sugar Labs
> http://www.sugarlabs.org