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Convergence articles

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Having been given the lengths, a and b, of two straight lines drawn from the acute angles of a right triangle to the middle of the opposite sides, determine the length of those sides.
Two circles, the sum of whose radii is a, are placed in the same plane with their centers at a distance 2a...
This is an invited working conference as part of the ICMI Study Series.
A sketch of the history of topology, beginning with the polyhedron formula, but continuing up to the present.
The symposium this year will discuss Gauss's Disquisitiones Arithmeticae.
Assume that the human population after the flood was 6 and that 200 years later the population was 1,000,000. Find the annual growth of the population.
A certain man had in his trade four weights with which he could weigh integral pounds from one up to 40. How many pounds was each weight?
The latest HPM Newsletter is now available here. Read it!

An elementary introduction to Euler squares and how they can be used in teacher training

A math history class visits the 'Beautiful Science' exhibit at the Huntington Library in Southern California.