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I have a system of differntial equations:

dx/ds = sin(p)

dy/ds=cos(p)

dp/ds = k

dk/ds = -1/EI(s)*(k*dEI/ds+f*sin(p))

x(0)=y(0)=p(0)=p(L)-pl = 0

These are nonlinear differential equations. I should use some sort of nonlinear finite difference. But I do struggle to setting up the finite difference system. I have found a lot of examples when we only have one differential equation for nonlinear finite difference.

But here I got 4 variables. Any suggestions?

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# System of nonlinear differential equations

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