I am new to mathcad and am getting the error "unable to form derivative matrix" when using OdeSolve. I think i may not be able to use OdeSolve inline like I am doing. Can anyone confirm this. And what should I do instead? I am attaching screenshots below. I appreciate your help
Solved! Go to Solution.
Better you would have posted the file itself!
Looks to me like a unit mismatch
Both highlighted expression (one of them seems to be a typo, I guess) have different units than the rest of the summands.
You should check your equations!
Thank you for noticing this. I went ahead and fixed it and am still getting the same issue.
I am unsure of how to attach the whole file, only how to attach an image or video.
Here are the new images. I tried doing it outside of the solve block as well.
To attach a file:
In the upper right corner of this window, select "Use advanced editor"
Then, in the lower right corner, "Attach" will appear:
And you can attach your file.
Thank you, I did realize this was what you meant. I was able to get the correct answer. (This issue arose from trying to follow an example problem).