Abs

Usage

• Abs[z]给出实数或复数z的绝对值.

Notes

• 对复数z而言,Abs[z]给出模| z |.

• 如果z不是数值,Abs[z]将不进行计算而保留

• 参见 Mathematica 全书: 1.1.3节, 1.1.5节, 3.2.2节和 3.2.2节.

• 同时参见: Re, Im, Arg, Mod, ComplexExpand.

Further Examples

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