Welcome to Convergence
We welcome you to this online magazine which provides a wealth of resources to help teach mathematics using its history. Please check back regularly, look at all the archived articles, and give us your comments and suggestions. Note that the site is best viewed through Internet Explorer. For Netscape users, please see the note under "About Convergence." The site is complimentary thanks to the National Science Foundation and The Mathematical Association of America.

This is a collection of some plates that Leonardo da Vinci created to illustrate De divina proportione of Luca Pacioli.
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The expression 0^0 is usually called an indeterminate form. This article details the history of the meaning of this expression and concludes that in some cases, we should evaluate this as 1.
Apollonius found how to draw normals to an ellipse from points in the ellipse by using hyperbolas. A modern version is presented here.
Four episodes in the history of geometry are discussed, where dynamic geometry helps in understanding the ideas.
A portrait gallery of mathematicians, taken from various sources.
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