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## Search Loci: Convergence:

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### Review of Mathematical Expeditions: Exploring Word Problems across the Ages

A collection of problems that should be of interest and use to teachers at all levels Read more

### Review of A Remarkable Collection of Babylonian Mathematical Texts

Our reviewer finds this collection of translations of Babylonian mathematical tablets to be both fascinating and accessible. Read more

### Review of Mathematics Emerging: A Sourcebook 1540-1900

Our reviewer praises the selection of excerpts, the use of facsimiles rather than transcriptions, and the commentary and English translation in this collection. Read more

### Review of The Man of Numbers: Fibonacci's Arithmetic Revolution

Author Keith Devlin argues that the impact of the Pisan merchant and his Arabic numbers on medieval Europe was even greater than previously thought. Read more

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Problem from another time...

## Tree and Vine

A tree is 20 feet tall and has a circumference of 3 feet. There is a vine that winds seven equally spaced times around the tree and reaches the top. What is the length of the vine?
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# Loci: Convergence

Welcome to Convergence! This section of Loci offers a wealth of resources to help you teach mathematics using its history. Please check back regularly for new articles, browse our archived articles in What's in Convergence? (Tables of Contents), and visit our just completed feature, Who's That Mathematician? The Paul R. Halmos Photograph Collection. Make MAA Loci: Convergence your source for mathematics history and its use in teaching!

Convergence editors:  Janet Beery, Kathy Clark
Convergence founding editors:  Victor Katz, Frank Swetz

 May 24th 997 Longitude determined by eclip... 1794 William Whewell, who coined t... 1973 Pi computed to one million de... 1543 Astronomer Nicolaus Copernicu... Pick a different day

Meetings & events involving the History of Mathematics

Today's Quotation

In mathematical analysis we call x the undetermined part of line a: the rest we don't call y, as we do in common life, but a-x. Hence mathematical language has great advantages over the common language.

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Mathematical Treasures

Featured Items:

## 'He Advanced Him 200 Lambs of Gold': The Pamiers Manuscript

Discussion of 15th century French manuscript, with translation of its problems, including one with negative solutions

## An Analysis of the First Proofs of the Heine-Borel Theorem

A comparison of circa 1900 proofs of the famous theorem with a view toward improving student understanding of compactness

## Georg Cantor at the Dawn of Point-Set Topology

Cantor's work on Fourier series provides historical motivation for the study of point-set topology.

## Learning Geometry in Georgian England

The copybooks of two young men reveal very different purposes in learning geometry.

## When a Number System Loses Uniqueness: The Case of the Maya

Considering non-unique representation of Maya calendar numbers may help your students understand their own number system better.

## Teaching the Fundamental Theorem of Calculus: A Historical Reflection

An argument that the teaching of elementary integration should better reflect its historical development

## Servois' 1813 Perpetual Calendar, with an English Translation

An image of the calendar, together with instructions for its use

## The Best Known Old Babylonian Tablet?

Use this image of a second millennium BCE clay tablet to review geometry and fractions with your students.

## Who's That Mathematician? Images from the Paul R. Halmos Photograph Collection

We invite you to send us information about photographs of mathematicians taken by Paul Halmos (1916-2006).

## Mathematical Treasures

A collection of images from the George Arthur Plimpton and David Eugene Smith Collections of Mathematical Materials in the Columbia University Library.

## Teaching and Research with Original Sources from the Euler Archive

How faculty and students can use and contribute to the MAA Euler Archive!

## What's in Convergence?

What's in Convergence? Here are all articles, classroom activities, announcements, and reviews arranged into annual volumes starting with 2004.