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ODE: Simple Nonlinear 1
ID:  999b36729ed4601f3642277321daebee
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xd0 = x0**2
x0(t) = 1.0/(1.0/c0-t)
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IVP: 8
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x0 = 5.0
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IVP: 85
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x0 = [-1.5,-0.5]