Newsgroups: sci.physics.plasma
From news@engin.umich.edu Mon Jan 23 13:32:59 1995
From: oliveria@down.engin.umich.edu (Roque Donizete de Oliveira)
Organization: University of Michigan Engineering, Ann Arbor
Subject: cauchy principal value
Keywords: cauchy, integral

Does anyone have any reference or fortran code for the numerical
evaluation of the Cauchy principal value

infinity
/ f(t)
I(z) = P / dt --------
/ t - z
-infinity

where z is complex ?
f(t) is a real analytic function (Gaussian-like).

I've looked in netlib's QUADPACK (which has a routine for real
singularity only) and Davis and Rabinowitz already.

Thanks.

Roque
oliveria@engin.umich.edu