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Sech

Usage

• Sech[z] 给出 z 的双曲正割.


Notes

• 数学函数 (参见 A.3.10节).
• .
• 1/Cosh[z] 自动转换为 Sech[z]. TrigFactorList[expr] 进行分解.
• 参见 Mathematica 全书: 3.2.6节.
• 同时参见: ArcSech, TrigToExp, TrigExpand.
Further Examples

This is the derivative.

In[1]:=  

Out[1]=

This is the integral.

In[2]:=  

Out[2]=

This is a series expansion around .

In[3]:=  

Out[3]=



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