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This is the title page to Rene Descartes' Treatise on Method, with its three famous essays on Dioptrics, Meteorology, and Geometry. The third essay contains Descartes' treatment of analytic geometry as well as his theory of equations and his rule for finding the normal to a given curve.

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A barrel has various holes in it. The fist hole empties the barrel in three days...
A man agreed to pay for 13 valuable houses worth $5000 each, what the last would amount to, reckoning 7 cents for the first, 4 times 7 cents for the second, and so on, increasing the price 4 times on each to the last.
Determine by using algebra the number of degrees in the angle A where: cos A = tan A

A survey of the famous Konigsberg Bridge Problem and its connection to graph theory, by an undergraduate student

This is the page illustrating the construction of an ellipse, from the Latin translation (1538) of the Treatise on Mensuration of Albrecht D�rer (1471-1528). This book was originally written in German and published in 1525 and was designed to teach German artists the geometrical ideas on which perspective in painting was based.
Collection of historical articles that appeared in Consortium, the newsletter of COMAP.
A square walled city measures 10 li on each side. At the center of each side is a gate. Two persons start walking from the center of the city.