# 3. Constructing a Point on a Cassini Oval

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This Demonstration shows another ruler-and-compass construction of a point on a Cassini oval.

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Contributed by: Marko Razpet and Izidor Hafner (July 2018)

Open content licensed under CC BY-NC-SA

## Snapshots

## Details

In *Conics*, Book III, theorem 42, Apollonius showed that for and .

References

[1] T. Heath, *A History of Greek Mathematics, Volume II: From Aristarchus to Diophantus*, New York: Dover Publications, 1981 p. 155.

[2] A. Ostermann and G. Wanner, *Geometry by Its History*, New York: Springer, 2012 pp. 76–78.

## Permanent Citation