So, as I mentioned in this topic , I was trying to implement the Lagrangian approach from scratch in Julia, and inquired for existing ways to do that. As the comments on that discussion point out, nothing of the sort exists yet, but the different packages suggested were Symbolics.jl, ModelingToolkit.…

Could you do this? E₁₁, E₂₂ = Symbolics.solve_for( [E₁ ~ 0, E₂ ~ 0], [d(d(x)), d(d(y))] ) That should work in the mixed case.

Symbolics.jl, ModelingToolkit.jl, DifferentialEquations.jl and the Lagrangian approach

Balinus November 2, 2022, 4:39pm 5

Good material here for a blog post somewhere

1 Like

Plotting functions of the DE solutions

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