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1-Visitor
September 13, 2011
Question

Problem with odesolve in Mathcad Prime 1.0 - Need Help

  • September 13, 2011
  • 1 reply
  • 6842 views

The attached MC Prime 1.0 worksheet uses a method, I implemented in MathCad 15.0. It worked fine in MC 15 but for some reason I cannot get the MathCad prime version working. I have tried changing initial conditions and the function slightly but nothing seems to work. Conceptually what this ode is designed for is to assess the temperature of a beam exposed to elevated temperature - in a fire for example. The cs function is the change of the specific heat of steel with temperature which no doubt is some type of curve fit to experimental data. I know the function looks strange but I have checked it against my MathCad 15 implementation (which works) and it is identical. Can someone show me what I am doing incorrectly MC Prime seems to work somewhat differently than MC 15. Thanking you in advance.

Regards, Mark Buckton

1 reply

1-Visitor
September 13, 2011

For some reason your worksheet will not open in my Mathcad Prime. Can you try and reduce the size of the worksheet by just posting the solve block problem?

Mike

MBuck21-VisitorAuthor
1-Visitor
September 14, 2011

Mike;

Thanks for looking at this for me. I have deleted the plots of some of the functions now the sheet is only 32kB.

Regards, Mark

24-Ruby IV
September 14, 2011

It will be good to use units by ODE solving.

See one example:

ODEMathcadPrime.png