Did Roundoff Cause Patriot Failure?

[David G. Hough on validgh]

 From the na-net digest:

 From: Robert Skeel <skeelacss1.cs.uiuc.edu>
 Date: Mon, 18 May 92 21:21:48 -0500
 Subject: Did Roundoff Cause Patriot Failure?

 Article on page 1347 of the 13 March 92 issue of Science
 ``Fatal Error: How Patriot Overlooked a Scud''
 The error in question was a roundoff error, or roundoff errors.
 The description of what happened is not clear, to me.
 I would be interested in more detail than is offered in the article.
 I am hoping that someone out there might be able to offer a plausible
 explanation.