Given a rectangle, find the line through one vertex of minimum length that passes through the extensions of the two opposite sides.

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Find two numbers such that multiplying one by the other makes 8 and the sum of their squares is 27.

Gun metal of a certain grade is composed of 16% tin and 84% copper. How much tin must be added to 410 lbs. of this gun metal to make a composition of 18% tin?

Download the three winning essays to learn about Kepler's mathematical astronomy, the roots of modern algebra, and the Quadrivium of Isidore of Seville.

This work discusses the people who solved some of Hilbert's problems from 1900, as well as the mathematics involved in the solutions.

Reprint of a classic biography of Gauss, with a new forward by Jeremy Gray.

The first page of Pathway to Knowledge by Robert Recorde (1510-1558). A version of Euclid's Elements, with commentary by Recorde to make it easier to understand. This page includes Euclid's first three postulates.

Fibonacci gave a practical rule for approximating the area of an equilateral triangle.

Thumbnail sketches of statisticians throughout history.

A collection of short pieces detailing how Euler solved a particular mathematics problem.