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S
Suki10-Marble
10-Marble
September 15, 2022
Question

Solve System of Differential Equations

  • September 15, 2022
  • 2 replies
  • 4555 views

Hi I am trying to solve system of 2 ODE as shown below. I am unable to find out the issue. 

SG_5146549_1-1663269394637.png

The error happens when I m trying to relate the first ode to the second one. I am getting error as "Unknown error: ode% _function% _illegal % _context. Please help!

 

2 replies

L
LucMeekes23-Emerald IV
23-Emerald IV
September 15, 2022

Please attach your Prime worksheet.

 

Success!

Luc

S
Suki10-MarbleAuthor
10-Marble
September 15, 2022

Hi Luc,

 

The calculation has been done at the bottom of the mathcad sheet. Please see attached.

 

Thanks

 

Sukrit

L
LucMeekes23-Emerald IV
23-Emerald IV
September 15, 2022

Have a look here https://community.ptc.com/t5/Mathcad/Multiple-ODE-s-in-MathCad/m-p/785905#M200434

Similar problem, solved.

 

Success!
Luc

F
Fred_Kohlhepp23-Emerald I
23-Emerald I
September 16, 2022

I can't use solve blocks (I only have Express), but by integrating and applying boundary conditions to evaluate integration constants we can still address this problem.  I doubt that you intended to set such a simple problem.  Attached is Prime 4 discussion.

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