4 years, 57 days

## @vv Awesome, thanks!!...

@vv Awesome, thanks!!

## @Kitonum Thank you so much!!...

@Kitonum Thank you so much!!

## I suppose I can treat the initial condit...

I suppose I can treat the initial conditions first as t-dependent equations...perform the transformation using dchange on them...get them into dimensionless form by defining dimensionless parameter... and then use their final version for ics statements in the transformed variables?

## This is very helpful...can I have a foll...

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!!