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单词 sign digit
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sign digit
sign digit n. Computing a digit in a sequence of digits whose value indicates the algebraic sign of the number represented by the sequence; cf. sign bit n.
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sign digit1946
sign bit1952
1946 A. W. Burks in Moore School Lect. (1985) 92 By contrast, complementation in the nines system is easy, since every digit (except the sign digit) is treated the same, and since no carry-overs can occur.
1969 J. J. Sparkes Transistor Switching viii. 194 The sign digit is normally ‘o’ for positive numbers.
2008 B. Fry Visualizing Data x. 326 The sign digit is extended to the other 24 bits that are added.
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