How to plot Homogeneous solution and Particular integral seperately of a second order differntial equation using ode45

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Equation
Eq = y'' + 4*y-15.6(cos(20t)-cosh(20t)-1.5(sin(20t)-sinh(20t)))==0
initial conditions y(0) = 0;y'(0) =0

Respuestas (1)

Alan Stevens
Alan Stevens el 16 de Abr. de 2022
ode45 just solves first order equations, so turn your second order equation into two first order ones, like so:
y' = v
v' = -4*y+15.6(cos(20t)-cosh(20t)-1.5(sin(20t)-sinh(20t)))
Look up help on ode45 to see how it solves these.

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