Exponents – numbers and math
This is a square. The darker purple line is the perimeter of the square. Using exponents is a short way of saying "multiply the number by itself." The little number [...]
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The Islamic story of wheat on the chessboard
Muslims playing chess in Spain What is exponential growth? About 1260 AD, Ibn Khallikan, a Kurdish historian living in the Abbasid Empire (modern Iraq), wrote an encyclopedia with biographies of many famous men [...]
