This is very helpful...can I have a follow up question? The goal this week is for the students to manipulate the form of the governing equations and initial conditions. Solving comes next week. :-) Using dchange I can manipulate the ode into dimensionless form, eventually my EQ3, that the students can see. How would I proceed to do the same for the initial conditions...for them to see the transformed results. Let's say those conditions are an initial position, x(t0)=L (where L is my x-scale) , and an initial velocity D(x)(t0)=v0. I am aiming for the appearance X(S0)=1 and D(X)(S0)=v0*T/L . Then let v0=V*L/T and V is a dimensionless group. Can Maple show that?
Happy New Year!!