**Polar equation: **

*r*^{2} = *a*^{2}/*θ*

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The lituus curve originated with Cotes and is described in his book

Roger Cotes (1682-1716) died at the age of 34 having only published two memoirs during his lifetime. Appointed professor at Cambridge at the age of 24 his work was published only after his death.

Cotes discovered an important theorem on the *n*th roots of unity; anticipated the method of least squares and discovered a method of integrating rational fractions with binomial denominators.

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JOC/EFR/BS January 1997

The URL of this page is:

http://www-history.mcs.st-andrews.ac.uk/Curves/Lituus.html