NASA engineers have also released an optimization framework for the Hyperloop concept as well. It's completely open-source and written in Python. Docs here: http://openmdao-plugins.github.io/Hyperloop/

Their baseline optimization focuses on 5 subsystems: Compressor Cycle Analysis, Pod Geometry, Tube Flow Limitations, Tube Wall Temperature, and Mission Analysis

Initial results indicate that the concept is still very viable. However, due to very tight coupling between the tube and vehicle size, the tube size will need to be around twice as large as originally proposed by the Tesla/SpaceX team to reach the proposed speeds.

Feel free to download the entire analysis and play with it yourself, without purchasing several expensive toolboxes from MATLAB!