Negative Infinity is less than everything including itself.
负无穷小于包括其自身在内的任何数。
Positive Infinity is greater than everything including itself.
正无穷大于包括其自身在内的任何数。
One thing to remember when using NaN is that it is incomparable with any other value including itself.
在使用NaN时需要记住一点,这个值无法与任何值进行比较,包括它本身。
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