ModelingToolkitStandardLibrary and Optimization

[ChrisRackauckas]

I posted a workaround in the issue. See if that works and if it does then we should add it to the FAQ.

@mzhenirovskyy

There are three parameters: R₊R, C₊C, and source₊k, but we know the source, so we don’t need to optimize it. How we can play just with two parameters (R₊R, C₊C) instead of three.

Make loss(p) with a vector of 2 things and put the constant inside of the loss function.