querries

*To*: mathgroup at smc.vnet.net*Subject*: [mg119554] querries*From*: "Savits, Thomas H" <savits at pitt.edu>*Date*: Thu, 9 Jun 2011 05:45:39 -0400 (EDT)

1) Why does Mathematica not give the value 0 to the expression (mu*lambda)^(b) - (mu^b)*(lambda^b)? It seems to treat the expression (mu*lambda) as a new variable. I used the greek letters from the palette in the actual expression. 2) Many times I cannot get Mathematica to simplify expressions involving the exponential functions, e.g., it won't combine the arguments of the Exp functions. Is there a way to force this? Thanks, Tom Savits Statistics Department University of Pittsburgh

**Follow-Ups**:**Re: querries***From:*Heike Gramberg <heike.gramberg@gmail.com>

**Re: querries***From:*Oliver Ruebenkoenig <ruebenko@wolfram.com>