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ptc-13854434-Participant
4-Participant
September 28, 2025
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conversion error from MathCAD 15 to Prime 11

  • September 28, 2025
  • 1 reply
  • 421 views

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?

Best answer by Werner_E

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.

 

1 reply

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Werner_E25-Diamond IAnswer
25-Diamond I
September 28, 2025

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.

 

    P
    ptc-13854434-ParticipantAuthor
    4-Participant
    September 29, 2025

    Thank you

     

    Paul

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