Thanks much for your response. I also appreciate the link to the example worksheet. However, it is not what I am looking for. Maybe I can ask the question a bit more clearly.
Assume I have an equation such as f:=a*z^2 + b*w
If I take the partial derivative of f with respect to z I want to see: 2*a*z*z'
but maple (correctly) displays: 2*a*z
If I take the partial derivative of f with respect to w I want to see: b*w'
but maple correctly displays: b
To further complicate, say I have an equation of the form:
eq1:= a*z' + b*w'^2
I cannot take the partial derivative of eq1 with respect to "z" because maple does not recognize that "z" is an independent variable of eq1. In the above case, I would like to see the following results.
partial of eq1 with respect to z: a*z''
partial of eq1 with respect to w: 2*b*w'*w''
So far, no joy.
Again, thanks for the response.