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From: adkins@tortoise.cis.ohio-state.edu (Brian Adkins)
Newsgroups: comp.sys.handhelds
Subject: Bug in QUAD
Message-ID: <89355@tut.cis.ohio-state.edu>
Date: 28 Feb 91 22:45:11 GMT
Sender: news@tut.cis.ohio-state.edu
Reply-To: <adkins@tortoise.cis.ohio-state.edu>
Organization: Ohio State University Computer and Information Science
Lines: 12

I've discovered a possible bug in the QUAD function.  Consider the
equation:

      x^2
  ----------- = .58    QUAD returns 'x=s1*76.15.../5000'  neither one of these
  (.02 - x)^2           roots is correct.

If the equation is re-written as x^2 = .58*(.02 - x)^2 it works fine.
HP tech support said it looked like it wasn't working "very well" and to call
back in 6 months to see if anything was done!  I have revision E.
My opinion is that it not only doesn't work very well in this case, but it
just doesn't work.  Any other ideas?