Online function grapher with downloadable result values?

[techniker]

Hi
Anyone knows?
Thanks a lot

 

[Borek]

http://www.wolframalpha.com/input/?i=y=2x^2+x-7

 

[techniker]

http://www.wolframalpha.com/input/?i=y=2x^2+x-7

Well thank you.
Do I have to subscribe to them as I don't see a download results/values anywhere?

 

[techniker]

Yes I think I have to subscribe for price,
anyone knows a free website?

 

[S.G. Janssens]

http://octave-online.net/ looks pretty nice, but you need to know MATLAB / Octave syntax. (That is easy to learn, though.) It's open and free and you can save your plots.

EDIT: Actually, you can save your plots in Wolfram Alpha, too. Just move your mouse cursor over the plot and a list of icons appears. One is for saving.

 

[techniker]

http://octave-online.net/ looks pretty nice, but you need to know MATLAB / Octave syntax. (That is easy to learn, though.) It's open and free and you can save your plots.

EDIT: Actually, you can save your plots in Wolfram Alpha, too. Just move your mouse cursor over the plot and a list of icons appears. One is for saving.

Thanks a lot
In wolfram I tried the saving icon, it requires subscribing.