# GammaDist Script and chart function

`GammaDist()` returns the accumulated probability of the Gamma distribution.

Syntax:

GammaDist(value, k, θ)

Return data type: number

Arguments

| Argument | Description |
| --- | --- |
| `value` | The value at which<br>you want to evaluate the distribution. The value<br>must not be negative. |
| `k` | A positive number defining the shape parameter. |
| `θ` | A positive number defining the scale parameter. |

This function is related to the `GammaINV` function in the following way:   
`If prob = GammaDist(value, k, θ), then GammaInv(prob, k, θ) = value`