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Convergence articles

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Whimsical posters of fifteen mathematicians with brief biographies.
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.
Having been given the perimeter and perpendicular of a right angled triangle, it is required to find the triangle.
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Find two numbers such that multiplying one by the other makes 8 and the sum of their squares is 27.
A survey of early theories of planetary motion, with dynamic figures to help in understanding these motions.
A set of four congruent circles whose centers form a square is inscribed in a right triangle ABC where C is the right angle and serves as one corner of the square. Find their radius in terms of the sides; a,b,c, of the triangle.
This work discusses the people who solved some of Hilbert's problems from 1900, as well as the mathematics involved in the solutions.
Historical Problems can be used to enliven any mathematics class. Here are some examples from medieval times, from a 19th century American textbook, and from a 19th century Armenian textbook, among other sources.
Page 4: Images of Jose Barria, Paul Halmos, Robert Bartle, Marshall Stone, Hyman Bass, and Joseph Bastian from the Halmos snapshot collection