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Question: Solving diff equation and plot the derivative of the solution

Question:Solving diff equation and plot the derivative of the solution

vitato987 25
ode dsolve numeric odeplot differential-equations
July 11 2020
0

 

ode := diff(x(t), t, t) = - sin(x(t)^3)/x(t)^2

ics := x(0) = 0.7, D(x)(0) = 0.8

sol := dsolve({ics, ode}, numeric)

How can I  plot the derivative of the function x(t)?

I tried something like that:

odeplot(diff(sol, t), t = 0 .. 20) 

but not working

 
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