Parameter Estimate Problem

Specific Domains Optimization (Mathematical)
7

I ref this “Handling Instability When Solving ODE Problems - #5 by ChrisRackauckas”,Thanks.
But I found in solver option ’ * d_discontinuities: Denotes locations of discontinuities in low order derivatives. This will force FSAL algorithms which assume derivative continuity to re-evaluate the derivatives at the point of discontinuity. The default is [] .',can you give some example how to use this d_discontinuities

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add these code

function condition(u,t,integrator)
        t-t_discontinue
    end
    
    function affect!(integrator)
        println("u1=",integrator.u[1],"t=",integrator.t)
    end

    cb = ContinuousCallback(condition,affect!,save_positions=(false,false))
'''