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An "Assume" type command

• To: mathgroup at smc.vnet.net
• Subject: [mg3908] An "Assume" type command
• From: Laurent Baig <lbaig at news.ccit.arizona.edu>
• Date: Sun, 5 May 1996 23:12:33 -0400
• Organization: The University of Arizona
• Sender: owner-wri-mathgroup at wolfram.com

One of the nice things about Maple V rev 4 is it's assume command.

Is there such a thing on Mathematica? Basically I am trying to get
a solution to a Fourier transform that I have to calculate by residues
by hand, and I would like to see a similar result on the computer. 
By hand, I need to first assume w (the frequency variable) is less than zero,
solve for that, then assume w greater than zero and solve for that. Mathematica
gives a real tidy solution to the problem, but doesn't really let me know if
what I did was right. Does anyone know how to do this?

-laurent baig
lbaig at ece.arizona.edu
University of Arizona


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