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术语 weight
释义 weight

In a positional representation, the factor by which the value represented by a character in the digit place is multiplied to obtain its additive contribution in the representation of a real number. For example: for hexadecimal 125, the weights associating with the characters 1,2,5 are respectively 16&+{2},16&+{1},16&+{0},therefore, (125)&-{16}=1×16&+{2}+2×16&+{1}+5×16&+{0}=293.
按位记数法中的一种因子,它与该数位的字符所代表的值相乘后,即得到实数表示中由该数位所 提供的值。例如,对于十六进制数125来说,字符1,2,5所相应的权分别是16&+{2},16&+{1},16&+{0}, 因此,(125)&-{16}=1×16&+{2}+2×16&+{1}+5×16&+{0}=293.同significance。
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