This is a figure that is used in section 4.2 and is written in the programming language Metapost. You can edit the figure by clicking on the edit tab.
![[Image]](/wikis/2009/bridgecourse1-TU-Berlin/img_auth.php/metapost/1/b/e/1be4db0c784ae4b67a3dee12071acd90.png)
