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Sigma KEE - Number
KB Term: 
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
数字
这是用来量度东西的数量或者某种东西的分量。 Numbers 可分为 RealNumberComplexNumberImaginaryNumber
Relationships      
Parents 数量 Any specification of how many or how much of something there is. Accordingly, there are two subclasses of Quantity: Number (how many) and PhysicalQuantity (how much).
Children 复数A Number that has the form: x + yi, where x and y are RealNumbers and i is the square root of -1.
 虚数Any Number that is the result of multiplying a RealNumber by the square root of -1.
 多极变量a variable that describes energetical interactions between multipoles.
 实数Any Number that can be expressed as a (possibly infinite) decimal, i.e. any Number that has a position on the number line.


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