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The Amazing Desmos Calculator

Submitted by Hermit Barber on Fri, 2012-02-03 15:05

Go here: https://www.desmos.com/calculator/ Try it. Be Amazed. Then install it in Chrome. As a teaching too, it is beyond cool. It isn't Mathematica (but then, like Sage, it's free), and unlike other Mathematical modelling tools, Desmos is easy. 

Desmos Calculator

By the way, you can attach sliders to variables, making it really easy to explore graphs and equations - or play with patterns. Who needs a spirograph when you can plot  r = 2(((sin theta.(cos theta)^0.5)/sin(n.theta + a))-((sin theta + c)/b))

and get:

Cardiac Graph

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