# Convergence articles

Displaying 31 - 40 of 644

A study of the solution of quartic equations in Cardano's Ars Magna and in the work of Euler and Descartes.

A farmer sold a team of horses for $440, but did not receive his pay for them until 1 yr, 8 mo after the sale. He had at the same time another offer of$410 for them. Did he gain or lose by the sale and by how much, money being worth 6%/yr?
Given a rectangle, find the line through one vertex of minimum length that passes through the extensions of the two opposite sides.
Essays on how number has been critical to the work of scientists through the ages.
A song for Pi Day.
The classic work by Dirk Struik is still worth reading, especially for its attention to the social context of the development of mathematical ideas.
Download the three winning essays to learn about medieval Islamic dust boards, Old Babylonian similarity, and the Fermat Problem.
NCTM Annual Meeting in St. Louis
Fibonacci gave a practical rule for approximating the area of an equilateral triangle.
Given a pendulum as shown. The height of the pendulum is two units and its horizontal width is 2 units. What is the area of the pendulum?