# invWeibull {#invweibull}

**Parent topic:**[Functions](../../Functions/category.md)

## Syntax {#syntax}

`invWeibull(alpha, beta, X)`

## Arguments {#arguments}

The scale parameter **alpha** and the shape parameter **beta** are both positive floating numbers.

**X** is a floating scalar or vector between 0 and 1.

## Details {#details}

Return the value of a Weibull inverse cumulative distribution function.

## Examples {#examples}

```
invWeibull(2.31, 0.627, [0.001, 0.5, 0.999]);
// output: [0.031525, 0.535009, 1.447494]

invWeibull(2.31,0.627, [0.1, 0.3, 0.5, 0.7, 0.9]);
// output: [0.236692, 0.401279, 0.535009, 0.679464, 0.899644]
```

