TIDES is a package that approximates ODEs using a Taylor series method (You can download it from https://sourceforge.net/projects/tidesodes/ ).

First I call the package:

<< MathTIDES

Then I introduce the ODE:

sincosODE = FirstOrderODE[{y, -x}, t, {x, y}];

Then the command TSMCodeFiles supposedly should return archives .c to compile:

  InitialConditions -> {0, 1},
  IntegrationPoints -> {0, Pi/2, Points[1]},
  Output -> Screen,
  MinTIDES -> "C"]

But the output of this line returns the error:

StringJoin::string: String expected at position 2 in This file has been created by MathTIDES (<>mathTIDESVersion\$<>) . >>
String expected at position 2 in This file has been created by MathTIDES (<>mathTIDESVersion$<>) June 4, . >>

Files "dr_sincosMCL.c", "sincosMCL.c", written in the directory

It seems that these string errors are in the .c files. So How can I fix them when it's the package that created them?

  • $\begingroup$ From the error it would seem that a Symbol mathTIDESVersion$ does not have an assigned String value. Yet in the /MathTIDES/init.m file the line mathTIDESVersion$ = "2.00" should define this. Therefore I think somehow the package is not being loaded properly. Nevertheless what happens if you manually set mathTIDESVersion$ = "2.00" before evaluating your TSMCodeFiles expression? $\endgroup$
    – Mr.Wizard
    Jun 5, 2016 at 0:02
  • $\begingroup$ With that line it seems everything works. $\endgroup$ Jun 7, 2016 at 18:47
  • $\begingroup$ That's great! I think something is still wrong, either with the package itself or the way it is loaded, as that should have been set on initialization. Nevertheless I am glad I could help. $\endgroup$
    – Mr.Wizard
    Jun 7, 2016 at 19:11
  • $\begingroup$ @CarlosVázquezMonzón Would you mind summarizing your experience and Mr. Wizard's suggestion in a self-answer? This may be helpful for other people suffering from the same issue. $\endgroup$
    – MarcoB
    Jun 9, 2016 at 18:15


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