You can get OpenModelica, an open-source implementation of the same underlying m...

		dmlorenzetti on May 23, 2012 \| parent \| context \| favorite \| on: Announcing Wolfram SystemModeler You can get OpenModelica, an open-source implementation of the same underlying modeling language (Modelica). http://www.openmodelica.org/ The language is quite complicated, though, and not all programs can run all well-formed simulation problems.