A square walled city of unknown dimensions has four gates, one at the center of each side.

Individual problems from throughout mathematics history, as well as articles that include problem sets for students.

A square walled city of unknown dimensions has four gates, one at the center of each side.

Find the area of the elliptical segment cut off parallel to the shorter axis;

A number of 3 digits in base 7 has the same three digits...

The authors recount the 'great tale' of Napier's and Burgi's parallel development of logarithms and urge you to use it in class.

If two Post-boys, A and B at 59 miles distance from one another, set out in the morning in order to meet...

There are two piles, one containing 9 gold coins, the other 11 silver coins.

The square of a certain number multiplied by itself and by 200 is 446,976. What is the number?

How a translation of Peano's counterexample to the 'theorem' that a zero Wronskian implies linear dependence can help your differential equations students

Suppose that for every 4 cows a farmer has, he should plow 1 acre of land, and allow 1 acre of pasture for every 3 cows; how many cows could he keep on 140 acres?

There is a mound of earth in the shape of a frustum of a cone.