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\title{	Stimulating Hardware and Software Support for Interval Arithmetic}
\author{G. William Walster}

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\markright{APIC'95, El Paso,
Extended Abstracts,
A Supplement to the international journal of {\rm Reliable
Computing}\ \ \ \ \ \ \ \ \ \ \  \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \
\ \ \ \ \ \ \ \ \ \ \ \ \ }

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\begin{abstract}
	In November and December 1994, widespread media attention was
	devoted to a small hardware bug in Intel's Pentium processor.
	Yet for decades, both computer professionals and users have
	ignored the more serious errors that are routinely produced
	using normalized floating point arithmetic.  Why?
	
	The answer to this question holds the key to stimulating the
	commercial development of interval hardware and software.  In
	the process of exploring the answer to this question, the
	following propositions are presented:
\begin{itemize}	
		\item[1)] Errors that are hidden by normalized floating point
		arithmetic will continue to be ignored until a viable
		alternative, such as interval arithmetic, is perceived
		to exist.
		
		\item[2)] Until hardware and software manufacturers perceive
		sufficient demand for interval arithmetic, neither will
		develop interval products.
		
		\item[3)] One way to break out of this stable equilibrium of
		commercial inactivity is to make an interval software
		development environment freely available for the most
		significant high volume platforms.
		
		\item[4)] Once interval arithmetic is perceived to be viable,
		applications will be developed and distributed.  Then
		in response to user's demands, manufacturers will be
		forced to market interval arithmetic software
		development environments.
		
		\end{itemize}
\end{abstract} 
  
\auffil{The author is a Manager with Fortran Compiler Technology,
		SunSoft, A Sun Microsystems Business,
e-mail Bill.Walster@eng.sun.com.}
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