Starting approximations for square root calculation on IBM system /360

1 April 1966

journal article
Published by Association for Computing Machinery (ACM) in Communications of the ACM

Vol. 9 (4) , 297-299
https://doi.org/10.1145/365278.365556

Abstract

Several starting approximations for square root calculation by Newton's method are presented in a form to facilitate their use in IBM System/360 square root routines. These approximations include several for the range [1/16, 1], which is the interval of primary interest on IBM System/360.

Keywords

ROOT CALCULATION
STARTING APPROXIMATIONS
SQUARE ROOT
APPROXIMATIONS INCLUDE
ROOT ROUTINES
IBM SYSTEM
NEWTON'S METHOD
SYSTEM/360 SQUARE
PRIMARY INTEREST

This publication has 3 references indexed in Scilit:

Double-precision square root for the CDC-3600
Communications of the ACM, 1964
Starting Approximations for the Iterative Calculation of Square Roots
The Computer Journal, 1963
On the computation of rational approximations to continuous functions
Communications of the ACM, 1962