**SBB**|GymGmunden|♾️MYD
=== INHALT === 
  * [[inhalt]]


=== LINKS ===

  * [[https://www.geogebra.org|GeoGebra]]
  * [[https://www.wolfram.com|Mathematica]]
  * [[https://j3l7h.de/videos.html|Jörn Loviscach]]
  * [[https://www.b3c.at|♾️ MYD]]