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KB Term:
Sigma KEE - ComplexNumber
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复数
这是一个有来自x + yi形式的
Number
，x和y是
RealNumber
，i是-1的平方根。
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Parents
数字
A measure of how many things there are, or how much there is, of a certain kind.
Number
s are subclassed into
RealNumber
,
ComplexNumber
, and
ImaginaryNumber
.
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Sigma version 3.0 is
open source software
produced by
Articulate Software
and its partners
