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 Author Comment/Response Ed Nowak 05/25/12 02:23am In Response To 'Re: Re: Re: making a transformation'---------Hi Bill, I came up with one more example that I can't explain: A = 2; B = 4; w = 1000; FullSimplify[A Cos[w t] - B Sin[w t]] /. a_ Cos[c_] - b_ Sin[c_] -> Sqrt[a^2 + b^2] Cos[c + ArcTan[a, b]] produces the output: 2 (Cos[1000 t] - 2 Sin[1000 t]) but: FullSimplify[A Cos[w t] - B Sin[w t]] /. a_ Cos[c_] - b_ Sin[c_] -> Sqrt[a^2 + b^2] Cos[c + ArcTan[a, b]] produces the output: Sqrt[A^2 + B^2] Cos[[tw] + ArcTan[A, B]] URL: ,

 Subject (listing for 'making a transformation') Author Date Posted making a transformation Ed Nowak 05/16/12 05:19am Re: making a transformation Bill Simpson 05/16/12 1:18pm Re: Re: making a transformation Ed Nowak 05/19/12 00:18am Re: Re: making a transformation Ed Nowak 05/19/12 02:14am Re: Re: Re: making a transformation Bill Simpson 05/21/12 00:41am Re: Re: Re: Re: making a transformation Ed Nowak 05/25/12 01:18am Re: Re: Re: Re: making a transformation Ed Nowak 05/25/12 02:23am Re: Re: Re: Re: Re: making a transformation Bill Simpson 05/26/12 10:14pm Re: Re: Re: Re: Re: Re: making a transformation Ed Nowak 05/28/12 7:22pm Re: Re: Re: Re: Re: making a transformation Michael 05/27/12 07:20am Re: making a transformation Ed Nowak 05/18/12 07:25am
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