conversion error from MathCAD 15 to Prime 11

[ptc-1385443]

I have this general relativity solution to Godel's metric solved in MathCAD 15 that runs just fine.  I wrote it in 2016 so details are a little fuzzy as to how I did it :).  I tried to convert it to Prime 11 and got several errors.  Are the errors easy to fix, or does it require a complete rewrite of the programs within?

[Werner_E · Accepted solution]

Main problem is that Prime does not allow symbolic evaluation inside of programs like you did in the last line in Gammap.

Furthermore Prime uses a different symbolic engine so its more often necessary to use the modifier "simplify" to get a simplified result.

And you must be patient - Prime and especially the symbolics is a lot slower than real Mathcad.

Hope the attached file will help.

[ptc-1385443]

Thank you

Paul