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Convergence articles

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A sketch of the history of topology, beginning with the polyhedron formula, but continuing up to the present.
Suppose a man had put out one cent at compound interest in 1620, what would have been the amount in 1824, allowing it to double once in 12 years?
There is much to see in this museum related to the history of mathematics.
How long does it take a single man to do work when...
A tree 100 units high is 200 units distant from a well; from this tree one monkey climbs down and goes to the well...
An oracle ordered a prince to build a sacred building, whose space would be 400 cubits, the length being 6 cubits more than the width, and the width 3 cubits more than the height. Find the dimensions of the building.

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

Gun metal of a certain grade is composed of 16% tin and 84% copper. How much tin must be added to 410 lbs. of this gun metal to make a composition of 18% tin?
Given the dimensions of an isosceles trapezoid find the length of the transversal drawn parallel to the bases that divides the trapezoid into 2 equal areas.
Find the greatest value of y in the equation a4 x2= (x2 + y2)3.