Hello,

I'm having problems to do somehting that I guess maple should be able to do. I am solving numerically a 2nd order equation. Then Dsolve gives me the function and its first derivative.

Is there not a way to plot 2nd and 3rd derivatives??
Of course I have thought of getting f'' as a funtion of f' and f through the differential equation, but in my case that involves a complicated analytical development, and I precisely want to verify that I didnt do...

Hello,

I am having probrems to do the following.

- I want to solve 2 equations A and B, which have to be solved numerically. (get x(t) and y(y))

- With the solution to A and B, I have to input a combination into other equation C. And then get the solution for other variable. (solve z''(t) + (k/t^2 + V(x(t),y(t))z(t)=0)

I could solve evertything togewther. The only problem is that the second part...