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NonNegative

Usage

• NonNegative[x]用来判断 x 是否是一个非负数,若是则返回True.


Notes

• 如果 x 明显是一个负数或复数值，NonNegative[x]返回False.否则,它保持不变.
• 同时参见: Negative, Positive, Sign, Greater, Simplify, Assumptions.
Further Examples

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