Ruby on Rails function grapher

I'm looking for a function grapher that I can use in a small Rails application I'm working on for m开发者_高级运维y university. Is there anything out there? If it needs the values (points) is not a problem but it would be better if it just parsed the equation. The functions will be 100% in ruby format (for example Math.exp(3*x))...

Thanks a lot!

Nicolás Hock

---

What kind of graphs are you looking for?

Matt Aimonetti created http://github.com/mattetti/googlecharts which may help you....

---

Maybe Flotr?

Or you could pull the guts out of Graphinity...