You are here

Convergence articles

Displaying 591 - 600 of 661

A method for extracting square roots used in Italy through the 18th century was introduced in a manuscript by the 12th century mathematician al-Hassar.
Given the dimensions of an isosceles trapezoid find the length of the transversal drawn parallel to the bases that divides the trapezoid into 2 equal areas.
Chuquet claimed that if given positive numbers a, b, c, d then (a + b) / (c + d) lies between a/c and b/d. Is he correct? Prove your answer
Knowing the base, b, and the altitude, a, of a triangle. Find the expression for a side of the inscribed square.
A lively history of number systems and number theory from earliest times up to the notion of "infinity".
Three circles of varying radius are mutually tangent. The area of the triangle connecting their centers is given. Find the radius of the third circle.
Website containing much information on mathematical symbolism and terminology, as well as portraits of mathematicians from postage stamps.
There is a round town 8000 feet in circumference.

An excellent and careful study of matrix methods for solving systems of linear equations in first century China.

Photo of Plimpton 322, an old Babylonian Tablet, from the Plimpton Collection at the Columbia University Library. Part of the Mathematical Treasures section of Loci: Convergence.