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FindRoot for an oscillating function

• To: mathgroup at smc.vnet.net
• Subject: [mg50915] FindRoot for an oscillating function
• From: mathma18 at hotmail.com (Narasimham G.L.)
• Date: Mon, 27 Sep 2004 00:42:37 -0400 (EDT)
• Sender: owner-wri-mathgroup at wolfram.com

How to find all real/complex roots by sweeping through the domain
{x,0,25} using Mathematica capability?   p = 1.234; q = .7654; gr = Sin[p x]/p
+ Sin[q x]/q ; Plot[gr,{x, 0, 25}]; FindRoot[gr == 0, {x, 0, 25}]