# GAMMAINV

## Content

This function returns the inverse of the gamma cumulative distribution.

## Syntax

`GAMMAINV( p, alpha, beta )`

## Arguments

This function has these arguments:

| Argument | Description |
| -------- | ----------- |
| *p* | Probability |
| *alpha* | Alpha parameter of the distribution |
| *beta* | Beta parameter of the distribution |

## Remarks

This function calculates the inverse of the F probability distribution, so if p = GAMMADIST(x,...), then GAMMAINV(p,...) = x.

## Data Types

Accepts numeric data for all arguments. Returns numeric data.

## Examples

`GAMMAINV(A3,3,4)`

`GAMMAINV(0.8902,R3C8,R3C9)`

`GAMMAINV(0.75,2,3)` gives the result 8.0779035867