ROYAL ASTRONOMICAL SOCIETY / SCIENCE PHOTO LIBRARY ROYAL ASTRONOMICAL SOCIETY / SCIENCE PHOTO LIBRARY
Opera Omnia. This is the collected works of the German mathematician and philosopher Gottfried Leibniz (1646-1716). Leibniz discovered calculus (after, but independently of Newton) and combinatorial analysis. He also created a calculating machine which could divide, multiply and find square roots unlike Pascal's simpler adding and subtracting machine. This is the title page of the first edition (1768), published in Geneva.
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