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Euler Eu·ler (oi'lər), Ulf Svante von. 1905-1983.
Swedish physiologist. He shared a 1970 Nobel Prize for studies of nerve impulse transmission.
Swiss mathematician who made many contributions to numerous areas of pure and applied mathematics, physics, and astronomy. He was one of the first to develop the methods used in differential and integral calculus, and he introduced much of the basic mathematical notation still used today.