How to extract the **numerical differential equations** from a model I built with ModelingToolkit.?

General Usage
1

hy,

I want to extract the numerical differential equations from a model I built with ModelingToolkit. For example:

@mtkbuild dgl = System(vcat(eqs_1, eq2), t)

Define problem

prob = ODEProblem(dgl, bcs, tspan)

Now I would like to obtain the explicit ODE form with numerical parameter values substituted, e.g.

dx˙= = 2x + 4x^2

Is there a way to do this in ModelingToolkit (i.e., to print or export the ODEs with parameters replaced by their numeric values)?

Thanks a lot in advance.
Andreas

2

eqs = equations(dgl) gives the explicit equations. If you want the numerical parameters explicitly inserted, I suppose you could substitute them into eqs using the mapping in bcs or prob.ps.