An Integral which has either or both limits Infinite or which has an Integrand which approaches Infinity at one or more points in the range of integration.

**References**

Press, W. H.; Flannery, B. P.; Teukolsky, S. A.; and Vetterling, W. T. ``Improper Integrals.'' §4.4 in
*Numerical Recipes in FORTRAN: The Art of Scientific Computing, 2nd ed.* Cambridge, England:
Cambridge University Press, pp. 135-140, 1992.

© 1996-9

1999-05-26