单词	positional notation
释义	positional notation noun : a system of expressing numbers in which the digits are arranged in succession, the position of each digit has a place value, and the number is equal to the sum of the products of each digit by its place value Example Sentences Recent Examples on the Web The answer is a process that doesn’t look much like modern arithmetic with Arabic numerals and positional notation, but is, in fact, far more powerful and flexible than it’s usually given credit for. Chad Orzel, Forbes, 12 May 2021 Word History First Known Use 1941, in the meaning defined above
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