# ARTS built-in documentation server

## Workspace Method avkCalc

### Description

Calculates the averaging kernel matrix describing the sensitivity of the OEM retrieval with respect to the true state of the system. A prerequisite for the calculation of the averaging kernel matrix is a successful OEM calculation in which the jacobian and the gain matrix dxdy have been calculated.

**Authors: **Simon Pfreundschuh

### Synopsis

avkCalc( | avk, dxdy, jacobian ) |

### Variables

OUT | avk | (Matrix) | Averaging kernel matrix. |

IN | dxdy | (Matrix) | Contribution function (or gain) matrix. |

IN | jacobian | (Matrix) | The Jacobian matrix. |