Alfven Wave in SI units

→ Working material: AlfvenWave_SIunits/, AlfvenWave_SIunits.tar.gz [untar this file by typing tar zxf AlfvenWave_SIunits.tar.gz] For those of you who have access to Axel's cvs repository, you can just say:
cvs co public_html/teach/PencilCode/material/AlfvenWave_SIunits