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Re: querries

• To: mathgroup at smc.vnet.net
• Subject: [mg119561] Re: querries
• From: Oliver Ruebenkoenig <ruebenko at wolfram.com>
• Date: Fri, 10 Jun 2011 06:37:54 -0400 (EDT)
• References: <201106090945.FAA06257@smc.vnet.net>

On Thu, 9 Jun 2011, Savits, Thomas H wrote:

> 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.
>


Tom,

you could use PowerExpand to do that.

Oliver

> 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
>

• References:
  • querries
    • From: "Savits, Thomas H" <savits@pitt.edu>