Given the cats eye as shown. Let the radius of the eye be given by R. What is the area of the pupil?

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Given the cats eye as shown. Let the radius of the eye be given by R. What is the area of the pupil?

This a wonderfully written tour of aspects of classical geometry-- a must read for all geometry teachers.

A survey of this theorem's 4000 year history, with applications to many fields.

Brief biographies of mathematicians with mathematical activities based on their work.

An excellent book surveying the history of the philosophy of mathematics from the time of Plato to the nineteenth and early twentieth centuries.

NCTM Annual Meeting in St. Louis

Review of Bertram's text on the history of Greek science.

In this article which won the 2005 prize of HOMSIGMAA, the author discusses Eratosthenes' argument to determine the size of the earth as well as possibilities for the size which Eratosthenes found (in modern measures).

Two pages from a 1650 manuscript of the Lilavati of Bhaskara II (1114-1185). The second photo is an illustration of the Pythagorean Theorem.

A discussion of the meaning of mathematical unsolvability in the context of the history of Abel's proof of the unsolvability of the quintic equation in terms of radicals.