Mathematical programs for engineering calculations - SMath Studio
Self-study materials
https://smath.com/wiki/GetFile.aspx?File=Tutorials/IntroductionSMathStudio088May2010.pdf
https://www.youtube.com/watch?v=__yWT41JAXU
https://www.youtube.com/watch?v=YG7U3ZobplE
https://www.youtube.com/watch?v=eOX4XiXTRWM&list=PL-D8vm1HAaMicJSgmQZWVFtnXYTolUTLn