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Convergence articles

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Thumbnail sketches of statisticians throughout history.
An extension of Al-Karaji's formula for the sum of the cubes by a 19th century Turkish author and journal editor
The earliest known example of a printed book on arithmetic, dates to 1478. Also known as the Art of Calculation.
On an expedition to seize his enemy's elephants, a king marched 2 yojanas the first day.

A survey of the mathematics education of cadets in the first century after the founding of the U.S. Military Academy.

The Fundamental Theorem of Calculus is presented in the version of Scottish mathematician James Gregory -- without the use of limits.
A series of circles have their centers on an equilateral hyperbola and pass through its center. Show that their envelope is a lemniscate.
In a circle whose circumference is 60 units, a chord is drawn forming a segment whose sagitta is 2 units. What is the length of the chord?
A small selection of Euler's works, explained by a master expositor.
A two door gate of unknown width is opened so that a 2 inch gap exists between the two doors.