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Negative

Usage

• Negative[x]用来判断x是否是负数,若是则返回True.


Notes

• 如果x明显是一个非负或复数值，Negative[x]返回False.否则，它不进行计算.
• 同时参见: NonNegative, Positive, Sign, Less, Simplify, Assumptions.
Further Examples

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