Online Tutorial
A Geometric Elliptic Curve Model.

2.3 Experiment: An Elliptic Curve Model over Real Numbers

The following model can be used to experiment with addition in a variety of elliptic curve groups.

Try the following experiments:

1. Change the variables a and b to see the resulting shape and the elliptic curve.

2. Select a point P on the curve, and then select a point Q on the curve. Add them together.

3. Select a point P on the curve and then double it.

4. Try selecting a = -3 and b = 2
There should be an interactive demonstration of elliptic curve groups here. A Java enabled browser is required for this experiment.
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