Rational approximation of e^−x on the positive real axis

Donald J. Newman and A. R. Reddy

Vol. 64 (1976), No. 1, 227–232

DOI: 10.2140/pjm.1976.64.227

Abstract

In this paper we obtain error bounds to approximations of e^−x on [0;∞) by rational functions having zeros and poles only on the negative real axis.

Mathematical Subject Classification 2000

Primary: 41A20

Milestones

Received: 27 January 1976

Revised: 30 March 1976

Published: 1 May 1976