(NOTE: this software is at the testing stage. There will be bugs and the reporting of them would be appreciated)
Math Minion is a general purpose calculation tool that runs completely in the browser and is completely free and private.
It combines a mind map style diagram of the relationships between a range of calculation tools, with a formula system that operates transparently on scalars, arrays and matrices. It also includes a comprehensive conversion unit system that performs dimensional analysis on all calculations.
Best of all, if you have a reasonably recent browser and can wait a few seconds for it to load, you can try it right now by tapping on Run.
A version of Math Minion is now available that has a fluid flash tool based on the open source CoolProp property package. You can run it at coolmm.mathminion.org, but please be patient, for there is a lot of code to download. It has examples with fairly detailed explanations and of course help for the flash tool.
The source code is in the GitHub repository as branch coolmm.
Any thoughts on the cause of this would be most welcome.