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The work of ten scientists who thought deeply about patterns.
A portrait gallery of mathematicians, mostly taken from the collection at the Dibner Library of the Smithsonian, with permission.
Page 6: Images from the Paul Halmos Photo Collection of Abram Besicovitch, R. H. Bing, Burton W. Jones, Garrett Birkhoff, Abolghassem Ghaffari, Errett Bishop, and Max Black
How much does Landowner A give to each worker knowing Landowner B gives a certain amount more and has few workers.
This is the title page of the Margarita philosophica (Pearl of Wisdom) of Gregor Reisch (1467 - 1525). The first edition was published in 1503. This work was used as a university textbook in the early sixteenth century.
Two men rent a pasture for 100 liras on the understanding that two cows are to be counted as being equivalent to three sheep. The first puts in 60 cows and 85 sheep; the second 80 cows and 100 sheep. How much should each pay?
In a right triangle, let the perpendicular be 5 and the sum of the base and hypotenuse 25. Find the lengths of the base and hypotenuse
Find two numbers, x and y, such that their sum is 10 and x/y + y/x = 25
A journey through numbers from their earliest beginning in India to the proof of Fermat's Last Theorem by Wiles.
In how many ways can a vowel and a consonant be chosen out of the word "logarithms?"