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Convergence articles

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A history of attempts to solve cubic and higher degree polynomial equations, including the notions of group theory and their relationship to the idea of symmetry.
The triangle ABC has a right angle at C. Show that 1/ED=1/AC+1/AB
A website with links to information about numerous topics in the history of mathematics.
A tree is 20 feet tall and has a circumference of 3 feet. There is a vine that winds seven equally spaced times around the tree and reaches the top. What is the length of the vine?
A sketch of the history of topology, beginning with the polyhedron formula, but continuing up to the present.
A railway train strikes a snowdrift which creates a constant resistance. How long does it take the snow to stop the train?
Heron of Alexandria (ca 200) wrote on many aspects of applied mathematics.
Dynamic geometry software is used to demonstrate early Greek attempts at the trisection of an angle and the squaring of a circle.
A number of 3 digits in base 7 has the same three digits...
A highly recommended new book on the history and applications of pi.