# Convergence articles

Displaying 191 - 200 of 736

Show that the curves x2 - y2 = a2 and 2 xy = b2 cross at right angles.

There were two men, of whom the first had 3 small loaves of bread and the other, 2.

An introduction to the prime numbers in many of their aspects.

Given four integers which, if added together three at a time, their sums are: 20, 22, 24, and 27. What are the integers?

Prove that a square circumscribed about a given circle is double in area to a square inscribed in the same circle.

This textbook seamlessly combines the history of non-Euclidean geometry with the mathematical ideas.

How many calves, goats and pigs did the farmer buy?

Determine the dimensions of the least isosceles triangle ACD that can circumscribe a given circle.

The history of the four color problem with sketches of the attempted proofs in the nineteenth century and an outline of the computer proof of the twentieth century.

There are many historical sessions during the 2007 summer meeting of the Mathematical Association of America.