# Convergence articles

Displaying 121 - 130 of 664

An oblong garden is a half yard longer than it is wide and consists entirely of a gravel walk...
A discussion of a collaborative effort in Italy to produce materials enabling secondary school teachers to use the history of mathematics in the classroom.
When knowing the sum of their ages along with another equation, determine how old a father and son are.
Wanting to know the breadth of a river, I measured a base of 500 yards in a straight line close by one side of it.
I owe a man the following notes: one of $800 due May 16; one of$660 due on July 1; one of $940 due Sept. 29. He wishes to exchange them for two notes of$1200 each and wants one to fall due June 1. When should the other be due?
In baking a hemispherical loaf of bread of 10" radius, the crust was everywhere of an equal thickness, and the solidity of the crust was equal to half the solid content of the whole loaf. What were the dimensions of the interior soft part?
Show that the curves x2 - y2 = a2 and 2 xy = b2 cross at right angles.
Paul Halmos Photograph Collection, page 2: Arveson, Aschbacher, Askey, Lininger, Atiyah, Doob
Howard Eves' sixth edition is still worth considering for a textbook.
This is the title page to Rene Descartes' Treatise on Method, with its three famous essays on Dioptrics, Meteorology, and Geometry. The third essay contains Descartes' treatment of analytic geometry as well as his theory of equations and his rule for finding the normal to a given curve.