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This is a page from the Rechenbuch of Adam Riese. It deals with the measurement of barrels. Also a page that has a table showing numbers both in German words, in Roman numerals, and in the Hindu-Arabic numerals.

A history of the development of Pascal's triangle in its various manifestations

The perimeters of two similar triangles are 45 and 135 respectively. One side of the first triangle has length 11″ and a second side, 19″. Find the lengths of the sides of the second triangle.

The square root of half the number of bees in a swarm has flown out upon a jessamine bush; 8/9 of the swarm has remained behind.

There are two piles, one containing 9 gold coins, the other 11 silver coins.

On an expedition to seize his enemy's elephants, a king marched 2 yojanas the first day.

Review of a book that suggests that the accepted historical chronology is fundamentally flawed.

A series of circles have their centers on an equilateral hyperbola and pass through its center. Show that their envelope is a lemniscate.

This is the title page of the 1779 edition of the works of Isaac Newton known at that time. Note that this is a much shorter book than the recent eight volume collection of Newton's mathematical papers, edited by Derek Whiteside.
The triangle ABC has a right angle at C. Show that 1/ED=1/AC+1/AB

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