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German philosopher and mathematician Baron Gottfried Wilhelm von Leibniz or Leibnitz invented differential and integral calculus independently of Isaac Newton and proposed an optimist metaphysical theory that included the notion that we live in "the best of all possible worlds."
Gottfried Wilhelm von Leibniz, a polymath, occupies a prominent place in the history. Most scholars think that Leibniz developed and published ever widely used notation. Only in the 20th century, his law of continuity and transcendental homogeneity found implementation in means of nonstandard analysis. He of the most prolific in the field of mechanical calculators. He worked on adding automatic multiplication and division to calculator of Blaise Pascal, meanwhile first described a pinwheel in 1685, and used it in the first mass-produced mechanical arithmometer. He also refined the binary number system, the foundation of virtually all digital computers.
Leibniz most concluded that God ably created our universe in a restricted sense, Voltaire often lampooned the idea. Leibniz alongside the great René Descartes and Baruch Spinoza advocated 17th-century rationalism. Applying reason of first principles or prior definitions, rather than empirical evidence, produced conclusions in the scholastic tradition, and the work of Leibniz anticipated modern analytic logic.
Leibniz made major contributions to technology, and anticipated that which surfaced much later in probability, biology, medicine, geology, psychology, linguistics, and computer science. He wrote works on politics, law, ethics, theology, history, and philology. Various learned journals, tens of thousands of letters, and unpublished manuscripts scattered contributions of Leibniz to this vast array of subjects. He wrote in several languages but primarily Latin and French. No one completely gathered the writings of Leibniz.