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Convergence articles

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A man agreed to pay for 13 valuable houses worth $5000 each, what the last would amount to, reckoning 7 cents for the first, 4 times 7 cents for the second, and so on, increasing the price 4 times on each to the last.

Curve sketching, tangent lines, and optimization, explored via interactive applets

A description of this well-regarded website.
The work of the great Renaissance artist/scientist Leonardo da Vinci can be taught in secondary schools through an integrated approach of several disciplines. This article explores the approach of the Ross School.
A study and English translation of Servois' attempt to place calculus on a foundation of algebraic analysis without recourse to infinitesimals, continuing the work of Lagrange.
You have two sums of money, the difference of which is 2 dirhams; you divide the smaller sum by the larger and the quotient is equal to 1/2. What are the two sums of money?
A square walled city measures 10 li on each side. At the center of each side is a gate. Two persons start walking from the center of the city.
A survey of early theories of planetary motion, with dynamic figures to help in understanding these motions.
Given a right triangle where you know the length of the base and the sum of the perpendicular side and the hypotenuse.

A collection of articles on mathematics in Europe from the twelfth to the fifteenth century.