Accession Number:

AD0274538

Title:

A COMPARISON OF FORTRAN AND SYMBOLIC PROGRAMMING ON THE IBM 1620 COMPUTER

Descriptive Note:

Corporate Author:

AEROSPACE RESEARCH LABS WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1962-03-01

Pagination or Media Count:

1.0

Abstract:

A comparison is made of the relative merits of SPS Symbolic Programming System, a 12-digit system with rounding, and FORTRAN, an 8-digit system with cut-off, for integrating two differential equations each of a different type with known solutions on the IBM 1620 Computer. The first differential equation is non-linear and propagates round-off and truncation errors badly. The second, Bessels differential equation of order zero, is rather stable, except at the origin. Various intervals of integration ranging from .05 to .002 were used with the Runge-Kutta fourth order integration formula. The results list the exact values, the calculated values, and errors associated with the two methods. Sample Fortran and SPS programs are given. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE