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Leonhard Euler (1707–1783) In mathematics and physics, many topics are named in honor of Swiss mathematician Leonhard Euler (1707–1783), who made many important discoveries and innovations.
Mundus alter et idem is a satirical dystopian novel written by Joseph Hall c. 1605. [1] The title has been translated into English as An Old World and a New, The Discovery of a New World, and Another World and Yet the Same. Although the text credits "Mercurius Britannicus" as the author, Thomas Hyde ascribed it to Hall in 1674.
An imaginary number is the product of a real number and the imaginary unit i, [note 1] which is defined by its property i 2 = −1. [1] [2] The square of an imaginary number bi is −b 2. For example, 5i is an imaginary number, and its square is −25. The number zero is considered to be both real and imaginary. [3]
Term rewriting systems can be employed to compute arithmetic operations on natural numbers. To this end, each such number has to be encoded as a term. The simplest encoding is the one used in the Peano axioms, based on the constant 0 (zero) and the successor function S. For example, the numbers 0, 1, 2, and 3 are represented by the terms 0, S(0 ...
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Diffusion means that if we change a single bit of the plaintext, then about half of the bits in the ciphertext should change, and similarly, if we change one bit of the ciphertext, then about half of the plaintext bits should change. [5] This is equivalent to the expectation that encryption schemes exhibit an avalanche effect.
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