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Convergence articles

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A report on an Australian teacher's use of material from the Rhind Papyrus.
A history of attempts to develop formulas expressing the sums of powers of the first n positive integers from the Pythagoreans to Jakob Bernoulli. With exercises.
Having been given the perimeter and perpendicular of a right angled triangle, it is required to find the triangle.
Two cog-wheels, one having 26 cogs, and the other 20 cogs, run together. In how many revolutions of the larger wheel will the smaller gain in 12 revolutions?
Fibonacci gave a practical rule for approximating the area of an equilateral triangle.
The incircle O(r) of triangle ABC touches AB at D, BC at E and AC at F. Find r in terms of AD, BE and CF.

After a terrible battle it is found that 70% of the soldiers have lost an eye.
Thumbnail sketches of statisticians throughout history.

Images from Frans van Schooten's 1659 edition of The Geometry of Rene Descartes

Suppose a ladder 60 feet long is placed in a street so as to reach a window 37 feet above the ground on one side of the street...

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