What's New in Wolfram SystemModeler 5.1 SystemModeler 5.1 iis a chargeable upgrade. New Wolfram Language interface, with expanded and streamlined capabilities Share, collaborate and present models and analytics notebooks with any Wolfram Language user New, more informative typesetting of system models in the Wolfram Language Easily make important parameter and variable settings available at the top level in a hierarchical model Parameters that do not affect the model in its current configuration can now be disabled Parameter and variable descriptions can now be edited directly in the parameters tab Experiment with and change parameters for built-in example models Improved model search with grouped search results and filters See the complete list of what's new in SystemModeler 5.1 on the Wolfram Research website.