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# Math.sinh()

The **`Math.sinh()`** function returns the hyperbolic sine of a number. 

## Syntax

```js
Math.sinh(x)
```

### Parameters

- `x`
  - : A number.

### Return value

The hyperbolic sine of `x`.

## Description

Because `sinh()` is a static method of `Math`, you always use it as `Math.sinh()`, rather than as a method of a `Math` object you created (`Math` is not a constructor).

