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What's in Convergence? - Contents of Volume 9 - 2012 (Loci - Volume 4)


Editors:  Janet Beery, Kathleen Clark


Algebraic Formalism within the Works of Servois and Its Influence on the Development of Linear Operator Theory, by Anthony Del Latto and Salvatore Petrilli

This article describes how Servois’ failed attempt to construct a foundation for the calculus nevertheless may have helped shape modern mathematics.

Teaching the Fundamental Theorem of Calculus: A Historical Reflection, by Jorge López Fernández and Omar Hernández Rodríguez

The authors argue that the teaching of elementary integration should better reflect its historical development.

Georg Cantor at the Dawn of Point Set Topology, by Nicholas Scoville

How the history of analysis, and in particular that of Fourier series, can be used to motivate the study of point-set topology

When a Number System Loses Uniqueness: The Case of the Maya, by Amy Shell-Gellasch and Pedro J. Freitas

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

HOM SIGMAA 2012 Student Paper Contest Winners, featuring essays by Jesse Hamer and Kevin Wininger

Download the two winning essays to learn about the history of using indivisibles to find the area under an arch of the cycloid in the 17th century and of the Radon transform and its use in x-ray tomography in the 20th century.

Servois’ 1813 Perpetual Calendar, with an English Translation, by Salvatore J. Petrilli, Jr.

An image of an early 19th century perpetual calendar, together with a translation and explanation of its creator’s instructions for its use

Maya Cycles of Time, by Sandra Monteferrante

Maya calendars as they were developed over time and the Maya modified base 20 number system used in the calendars

“He Advanced Him 200 Lambs of Gold”: The Pamiers Manuscript, by Randy Schwartz

A discussion of the context and content of the 15th century Pamiers manuscript, with translations of its problems, including one for which negative solutions were acceptable

An Analysis of the First Proofs of the Heine-Borel Theorem, by Nicole Andre, Susannah Engdahl, and Adam Parker

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

Learning Geometry in Georgian England, by Benjamin Wardhaugh

A comparison of the geometry found in two 18th century copybooks written with two very different purposes



Who's That Mathematician? Images from the Paul R. Halmos Photograph Collection, by Janet Beery and Carol Mead

The well-known mathematician took most of these 343 photos of mathematicians from the 1950s through the 1980s. We welcome you to provide additional information about the photo subjects, including fond memories and interesting stories. This article was an expanding feature throughout 2012 (and through March of 2013), with new photos added every week throughout the year.

Mathematical Treasures II, by Frank J. Swetz



In Pursuit of the Traveling Salesman, by William J. Cook. Reviewed by Christopher Thompson.

Author William Cook recounts the history of and computational progress on the traveling salesman problem, emphasizing connections within mathematics and with other disciplines.

The Man of Numbers: Fibonacci's Arithmetic Revolution, by Keith Devlin. Reviewed by Frank J. Swetz.

Author Keith Devlin brings to life the impact of the Pisan merchant and his Arabic numbers on medieval Europe.

Mathematics Emerging: A Sourcebook 1540–1900, by Jacqueline Stedall. Reviewed by Frank J. Swetz.

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

The Lost Millennium: History's Timeline under Siege, by Forin Diacu. Reviewed by Branden Anglin.

This book suggests that the accepted historical chronology is fundamentally flawed.

A Remarkable Collection of Babylonian Mathematical Texts, by Jöran Friberg. Reviewed by Frank J. Swetz.

Our reviewer finds this collection of translations of Babylonian mathematical texts to be both "remarkable" and accessible.

"What's in Convergence? - Contents of Volume 9 - 2012 (Loci - Volume 4)," Loci (October 2009)