Add ability to provide additional guesses to linearize and family

[AayushSabharwal]

Effectively, they should be more-or-less identical to ODEProblem constructors. Even linearization_function, which despite the name does construct an ODEProblem.

[B-LIE]

Regarding the case you helped me with a couple of days ago (debugging hydropower model)... I believed it was solved and closed the issue, but when I re-ran the code, it still crashes :-o. I was wondering whether you use a different version of MTK/Symbolics than I do?

I'm on:

• ModelingToolkit v9.64.0
• Symbolics v6.29.1

I include the Julia code (renamed to *.txt because I am not allowed to upload *.jl files). I have extended the code in the file with what I thought/understood was your proposed solution...

If you have the time, please enlighten me (a) whether the problem is related to my versions of packages, or (b) I misunderstood your solution.

HydroPower_test.txt

[B-LIE]

Aha. It seems like your proposed fix works with ModelingToolkit v9.64.1.