Given four numbers whose sum is 9900; the second exceeds the first by 1/7 of the first...

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

Given four numbers whose sum is 9900; the second exceeds the first by 1/7 of the first...

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

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

Two circles, the sum of whose radii is a, are placed in the same plane with their centers at a distance 2a...

A lady being asked how old she was at the time of her marriage replied that the age of her oldest son was 13; that he was born 2 years after her marriage...

Three congruent circles of radius 6 inches are mutually tangent to one another. Compute the area enclosed between them.

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

Determine the radii of three equal circles decribed within and tangent to a given circle, and also tangent to each other

There is a log 18 feet long, the diameter of the extremities being 1 ft and 2.6 ft respectively...