find_root rat-to-float messages

• Subject: find_root rat-to-float messages
• From: Kostas Oikonomou
• Date: Mon, 31 May 2010 20:31:24 -0400

I am using find_root to solve an equation of the form f(x) - 
g(x), where I take care that f() and g() are evaluated with 
floats, but I still get lots of conversion messages such as

rat: replaced -302852. by -6359888/21 = -302852.

rat: replaced -302852. by -6359888/21 = -302852.

rat: replaced 1.0 by 1/1 = 1.0

rat: replaced -1.0 by -1/1 = -1.0

rat: replaced -302852. by -6359888/21 = -302852.

I get no such messages when I evaluate f() and g() on some 
trial points by hand. What is causing these messages in 
find_root? (And how can I eliminate them?)

Thanks for any suggestions.

				Kostas

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