Sun WorkShop(TM) 6 Fortran 95 Interval Arithmetic README |
This document contains last minute information about Fortran
95 Interval Arithmetic.
To view the text version of this document, type the following at a command prompt: example% more /opt/SUNWspro/READMEs/interval_arithmeticTo access the HTML version of this document, point your Netscape(TM) Communicator 4 or compatible browser to: file:/opt/SUNWspro/docs/index.html Note: If your Sun WorkShop software is not installed in the standard /opt directory, ask your system administrator for the equivalent path on your system. For more information about this product, see:
Contents
Introduction
What Is Interval Arithmetic?
With Sun WorkShop 6 Fortran 95, it is a simple matter to write interval programs to compute rigorous bounds on the value of arithmetic expressions: To achieve the best results, use existing interval algorithms that compute narrow width interval results. Devising algorithms to compute narrow interval results is the topic of interval analysis. See "Where Can I Get More Information?" for information on interval algorithms .
Why is Interval Arithmetic Important?
As intervals become more widely used, libraries of interval solvers will be used routinely to compute sharp interval solutions to linear and nonlinear problems, while taking into account all sources of error. With these libraries, scientists, engineers, and developers of commercial applications will be able to write programs to solve problems that are currently out of reach.
Where Can I Get More Information?
This web site contains links to the following:http://www.sun.com/forte/fortran/interval
Problems and Workarounds
-xia and -xinterval Can Only be Used With -fsimple=0 and -fns=no-xinterval={widestneed|strict} and -xia={widestneed|strict} command line options cannot be used with either -fsimple or -fns options set to any value other than -fsimple=0 and -fns=no. This restriction is not always enforced when the -xia option is used in combination with other options (for example -fast) that can set either -fsimple or -fns. For this reason, specify the -xia option last on the command line.
Copyright 2000 Sun Microsystems, Inc., 901 San Antonio Road, Palo Alto, CA 94303, U.S.A. All rights reserved. Sun, Sun Microsystems, the Sun logo, docs.sun.com, and Solaris are trademarks, registered trademarks, or service marks of Sun Microsystems, Inc. in the U.S. and other countries. |