# Convergence articles

Displaying 31 - 40 of 649

In the middle of the 18th century, King Frederick the Great of Prussia became interested in creating a lottery to raise money. As was his custom when mathematical matters were involved, he called upon Leonhard Euler for counsel.

A math history class visits the 'Beautiful Science' exhibit at the Huntington Library in Southern California.

Determine the different values of x, when a certain function hits a minimum.
A man bought a number of sheep for $225; 10 of them having died, he sold 4/5 of the remainder for the same cost and received$150 for them. How many did he buy?
A study of some elements of Greek geometry, as part of a course for liberal arts undergraduates on basic concepts of the calculus.
The edge of a cloud is at an altitude of 20 degrees and the sun above it at 35 degrees. The shadow cast by the edge of the cloud fall on a object 2300 yards away, how high is the cloud?
Two travelers, starting at the same time from the same point, travel in opposite directions round a circular railway.
There are a number of wonderful mathematics websites that readers of Convergence should be aware of. We describe some of them here.
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?
The author presents five modules based on mathematics from medieval Islamic cultures for use in a variety of high school and college mathematics courses.