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不等式

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不等式数学名词,是指表示二个量之间不等的叙述[1]。一般常会表示成二个表示式表示要探讨的量,中间再加上不等关系的符号,表示两者的关系。以下是一些不等式的例子:

有些作者认为不等式只能用来表示中间有出现不等号≠的关系式[2]

连锁的不等式

若几个不等式中间有共用的变数,而且几个不等式有逻辑与的关系,有时会直接将不等式写在一起来简化。例如不等式

是以下不等式的缩写

参考资料

  1. ^ Thomas H. Sidebotham. The A to Z of Mathematics: A Basic Guide. John Wiley and Sons. 2002: 252. ISBN 0-471-15045-2. 
  2. ^ 埃里克·韦斯坦因. Inequation. MathWorld. 

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不等式
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