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Convergence articles

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If a ladder, placed 8 ft. from the base of a building 40 ft. high, just reached the top, how far must it be placed from the base of the building that it may reach a point 10 ft. from the top?
This book is a collection of mathematical ideas organized around the themes of infinity and the illumination of the nature of mathematical thought.
This is a page from an early printed edition of the Arithmetica of Jordanus de Nemore (early 13th century).
A history of the various algebraic structures that came together to give us "abstract algebra" by early in the twentieth century.
There is a log 18 feet long, the diameter of the extremities being 1 ft and 2.6 ft respectively...

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

In a right triangle, let the perpendicular be 5 and the sum of the base and hypotenuse 25. Find the lengths of the base and hypotenuse
A collection of 24 mini-posters, each containing a quotation about mathematics.
A detailed study of the cycles of the Mayan calendar, along with some other ancient calendars.

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