# Convergence articles

Displaying 651 - 655 of 655

A discussion of why we use "e" to represent the base of the natural logarithm system.
When knowing the sum of their ages along with another equation, determine how old a father and son are.
Suppose the area of an equilateral triangle be 600. The sides are required.
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?
A biography of the geometer Donald Coxeter.