Here is a problem I found trying to solve a simple engineering question.




Please see attached file: Problem with solvers.sm (90 KiB) downloaded 805 time(s).

Sorry I don't have maxima.
Equations are solved with FindRoot().

I also had to make some alterations.
Original y(x) function has unit mismatch.
Solvers don't like direct usage of if() or cases().
You can detect it with Unknowns().
If it doesn't produce a result, there is a problem.

Here is your file solved.

Regards

Problem with solvers_solved.sm (95.81 KiB) downloaded 803 time(s).

I assumed C.1 and C.2 has same units.
Maybe I was wrong at that conclusion.
Worksheet below find a solution between 4-6.
This may be the correct result.
Sorry if I made a huge mistake.

Regards

Problem with solvers_revisited.sm (105.7 KiB) downloaded 837 time(s).

Perfect! Thanks for your cooperation!