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Topic: Test the sign
Replies: 2   Last Post: Jul 17, 1996 1:44 AM

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Daniel J. Rogers

Posts: 1
Registered: 12/11/04
Test the sign
Posted: Jun 28, 1996 9:42 AM
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I am trying to evaluate the signs of some
symbolic expressions. The following is
a simple example.


a > 0
b > 0
c > 0
0 < d < 1

We know that a*b*c - a*b*c*d >0

Can I define the variables in such a way that
Mathematica can evaluate the expression.

Thanks, Dan Rogers

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