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