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Convergence articles

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Cantor's work on Fourier series provides historical motivation for the study of point-set topology.
Information on previous ESUs
This is a page from a manuscript of the Algebra (Maqalah fi al-jabra wa-al muqabalah) of Omar Khayyam (1048-1131). This work is known for its solution of the various cases of the cubic equation by finding the intersections of appropriately chosen conic sections.
A circle, a square and an equilateral triangle all have the same perimeter equal to 1 meter. Compare their areas.
The sum of the two digits of a 2-digit number is 9. If 45 is subtracted from the number, the result will be expressed by the digits in reverse order. Find the number.
The number 50 is divided by a certain number. If the divisor is increased by 3, the quotient decreases by 3.75. What is the number?
There are two piles, one containing 9 gold coins, the other 11 silver coins.
A gentleman has bought a rectangular piece of land whose perimeter is to be 100 rods.
Image of first arithmetic book published in the English colonies in what is now the Eastern United States
A man hired a horse in London at 3 pence a mile. He rode 94 miles due West to Bristol then due north to Chester, whence he returned toward London for 66 miles, which put him in Coventry.

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