Modifying displayed form of an expression?

*To*: mathgroup at smc.vnet.net*Subject*: [mg57127] Modifying displayed form of an expression?*From*: AES <siegman at stanford.edu>*Date*: Mon, 16 May 2005 21:35:25 -0400 (EDT)*Organization*: Stanford University*Sender*: owner-wri-mathgroup at wolfram.com

I have a number of symbolic results which emerge from a Mathematica calculation in the form a Exp[b] f = ---------------------------------- Exp[c] - Exp[d] where a is "other stuff" and b, c and d are simple sums like b = b1 + b2 + b3. By default Mathematica seems to shuffle the elements of b, c and d in these results such that there will be only positive signs in the exponents b, c and d. I want to force Mathematica to display each of these expressions in the form a Exp[b - c] ------------------------------------------- 1 - Exp[d - c] so that the leading term in the denominator is always one (which will in fact mean that these expressions all have the same common denominator). How might I do this? Note: I only want to force this display of each expression _once_, when I first calculate it, and I'm willing to do some handwork on each expression to accomplish this. Thus, I don't need some sophisticated general tool, just a way to do this "by hand". I've been trying Inputs like (Exp[-c] Numerator[f]) / (Exp[-c] Denominator[f]) and not getting anywhere. Ideas?

**Follow-Ups**:**Re: Modifying displayed form of an expression?***From:*Andrzej Kozlowski <akoz@mimuw.edu.pl>

**Re: Modifying displayed form of an expression?***From:*Chris Chiasson <chris.chiasson@gmail.com>