See also the Dr. Math FAQ: 3D and higher Browse Middle School
History/Biography Stars indicate particularly interesting
answers or good places to begin browsing. Selected answers to
common questions: About Roman numerals. - Rule of Three
[06/15/2002] Please explain to me briefly (and with an example)
the concept of the rule of three. - The Second Millennium
[11/29/1999] Does the second millennium begin with the year 2000
or the year 2001? How does this relate to the math of counting
numbers and subtraction? - Short History of Geometry
[09/15/2001] Were there any people who helped to develop
geometry besides Euclid? - Simple Example of Ramanujan's Work
[03/28/1999] Ramanujan's contributions to the divisibility
properties of partitions of - Subtracting Roman Numerals
[03/14/1999] What are the rules for the "subtraction components"
in writing Roman - Theta [04/14/1997] What is Theta? Does it
have a constant value? - Trachtenberg Mathematics [12/08/1996]
I've been looking for a book I had a long time ago on the T