Revert "Korrektur Point3D.java presenation.tex"

This reverts commit a0c11fb66ceaa7175905ecf153cfabc7b872244a, reversing
changes made to a0c03728f4f2488cbd578c23eb300b99dffb408a.
Revert "Revert "Korrektur Point3D.java presenation.tex""

This reverts commit 83f0cc356c42e59a032eb042b07613a1e3654581.