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MathGroup Archive 1992

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sign of parameters and integration

  • To: mathgroup at yoda.physics.unc.edu
  • Subject: sign of parameters and integration
  • From: evenson at tammy.harvard.edu (Jeffrey Evenson)
  • Date: Mon, 6 Apr 92 14:17:14 -0400

Consider

Integrate[ 1/(a x^2 + b x + c), x ]

The principal value of the result depends on whether b^2 is
greater or less than 4ac.  Mathematica seems to assume that
4ac > b^2.  Is there a way to tell Mathematica that b^2 < 4ac.

Thanks,

Jeff Evenson
evenson at tammy.harvard.edu





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