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Re: Hold problems with FindRoot

• To: mathgroup at smc.vnet.net
• Subject: [mg57101] Re: Hold problems with FindRoot
• From: "Nafod40" <may106 at psu.edu>
• Date: Sun, 15 May 2005 03:04:09 -0400 (EDT)
• References: <d64eu4$9cb$1@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

Try defining f[x,y] so it only recognizes numbers, i.e...

f[x_?NumericQ, y_?NumericQ]:= blah, blah, blah

FindRoot tries to resolve it symbolically when it first "sees" f[ ].