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Twenty-three weary travelers entered a delightful forest. There they found 63 numerically equal piles of plantain fruit.
Find the height of a window.
Having been given the lengths, a and b, of two straight lines drawn from the acute angles of a right triangle to the middle of the opposite sides, determine the length of those sides.
Two posters illustrating the major milestones in the history of mathematics, from the first ideas of "number" to the proof of Fermat's Last Theorem.
Two merchants, A and B, loaded a ship with 500 hhds (hogshead) of rum; A loaded 350 hhds, and B the rest; in a storm the seamen were obliged to throw overboard 100 hhds; how much must each sustain of the loss?
This is an invited working conference as part of the ICMI Study Series.
An interesting problem from Banneker's notebook as well as other problems to use with students.

We invite you to send us information about these photographs of 20th century mathematicians.

On Triangles, by Regiomontanus (Johannes M�ller) (1436-1476), written in 1464 but not published until 1533.
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