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ODE: Simple Nonlinear 3
ID:  3b2e70e580480932aa9496fcd5e63b0e
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xd0 = sqrt(1.0-x0**2)
x0(t) = sin(t+asin(c0))
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IVP: 43
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x0 = 0.2
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IVP: 44
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x0 = [0.1,0.3]