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ODE: E4 DETEST
ID:  9d2c39c398c05cf2732767150163a2a2
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xd0 = x1
xd1 = 0.032-0.4*x1**2
x0(t) = 2.5*log(cosh(sqrt(0.032*0.4)*t+log((sqrt(0.032)+sqrt(0.4)*c1)/(sqrt(0.032)-sqrt(0.4)*c1))))+c0-2.5*log((0.032+0.4*(c1**2))/(0.032-0.4*(c1**2)))
x1(t) = sqrt(0.032/0.4)*(1.0-2.0/(exp(2.0*sqrt(0.032*0.4)*t+log((sqrt(0.032)+sqrt(0.4)*c1)/(sqrt(0.032)-sqrt(0.4)*c1)))+1))
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IVP: 66
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x0 = 30.0
x1 = 0.0
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IVP: 67
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x0 = [29.5,30.5]
x1 = 0.0