# Function sech

Calculate the hyperbolic secant of a value; sech(x)=1/cosh(x)


     sech(x)


 For matrices, the function is evaluated element wise.




### Parameters

Parameter | Type | Description
--------- | ---- | -----------
`x` | Number | Boolean | Complex | Unit | Array | Matrix | 

### Returns

Type | Description
---- | -----------
 | undefined




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