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A Round Town

There is a round town 8000 feet in circumference.

The History of Mathematics: A Brief Course

A new edition of a brief history text, arranged topically rather than chronologically.

Mathematical Treasure: Ratdolt's Euclid's Elements

Images of the first printed edition of Euclid's Elements

Complexities: Women in Mathematics

A collection of articles about historical and contemporary women in mathematics.

Mathematics in Ancient Iraq: A Social History

A new history of mathematics in ancient Mesopotamia, concentrating on its social aspects.

Mathematics as the Science of Patterns

Mathematics is often referred to today as the "science of patterns." But has this always been true historically, or is this something that happened in recent times? The question is discussed here with reference to the work of Euclid and Jacob Steiner.

A Linear Hypocycloid

Prove geometrically that the hypocycloid is a straight line when the radius of the rolling circle is one-half the radius of the fixed circle.

Water Reeds

A pond has two water reeds, where the one grows 3 feet and the other 1 foot on the first day. The growth of the first becomes every day half of that of the preceding day, while the other grows twice as much as on the day before.

Making Heads or Tails of It

Now there are six-headed four-legged animals and four-headed two-legged birds placed together.

Property Values

A gentleman has bought a rectangular piece of land whose perimeter is to be 100 rods.