# SECH

**The SECH function returns the hyperbolic secant of a number.**

This function takes a single [Number](../../variable-data-types/the-number-variable-data-type) as input. It outputs that Number's hyperbolic secant.

#### Declaration

```javascript
SECH(number) -> hyperbolic_secant
```

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#### Parameters

**number** (required, type: _Number_) The number to calculate the hyperbolic secant of.

#### Return Values

**hyperbolic\_secant** (type: _Number_) The hyperbolic secant of the giving number.

#### Examples

The following example returns the hyperbolic secant of 1:

```javascript
SECH(1) -> 0.6480542736638855
```
