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Early Inventors of Adding Machines By: Shana DeGroff May 31, 2007

Three historical figures in the development of the calculator: . Leonardo da VinciJohn NapierBlaise Pascal. . What is an adding machine/calculator?It is a device for performing calculations.. 2 3 = 5 91 146 = 237 98 17 = 81 . Let's first look at Leonardo

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Early Inventors of Adding Machines By: Shana DeGroff May 31, 2007

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    1. Early Inventors of Adding Machines By: Shana DeGroff May 31, 2007

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