Hello,
I have an expression of the form
A*B*C*D
EQ1: F = ---------
E
where C/E has a particular simplification.
I would like to have this expression rewritten on the form
C
EQ2: F = A*B*D*---
E
This would allow me to use, e.g.
substpart( simplify(piece), EQ2, 2, 4 )
My question is how to produce EQ2 from EQ1, short of rewriting manually or
copying and pasting.
I am clumsy; when I do complex things manually I invariably do mistakes,
forget a parenthesis or whatever, so I would like to have methods of doing
this where I either get an error message or I get something that is
mathematically equivalent to what I started with.
Maybe
A: part(EQ1, 2,1,1)
B: part(EQ1, 2,1,2)
C: part(EQ1, 2,1,3)
D: part(EQ1, 2,1,4)
E: part(EQ1, 2,2)
F: part(EQ1, 1)
EQ2: F = A*B*D*(C/E)
EQ1 - EQ2
would be an approach, where the last line is the control. (Assume that the
letters A-E are actually not in use up to this point.)
Now, this could work, but it is quite a bit of writing. I wish something
more legible too.
How can I do this?
Thanks
Enrique