I have several functions with time dependent variables. How do I change the functions so they are no longer time dependent? So for instance, I want to define the following:
x = sin(alpha(t))
x_dot = diff(x,t)
Now I want to take the derrivative of x wrt alpha, but that is not possible, because alpha is time dependent - so I tried using the subs command
x_dot = subs(x_dot,alpha(t),alpha)
This does, however produce an error. Is there any workaround to this?
Thank you very much in advance. Best regards Jens