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Author Comment/Response
Ed Nowak
05/25/12 01:18am

In Response To 'Re: Re: Re: making a transformation'
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Hi Bill,
Thanks for your help on this.
I understand what you are saying, but if you'll notice in my .nb attachment all the examples that worked were exactly the same as the ones that didn't work. Only the font was different.That's what so puzzling.
I also tried this:
FullSimplify[2 Cos[1000 t] - 4 Sin[1000 t]] /.
a_ Cos[c_] - b_ Sin[c_] -> Sqrt[a^2 + b^2] Cos[c + ArcTan[a, b]]
The output I get for this is:
2 (Cos[1000 t] - 4 Sin[1000 t])

Clearly there is a match here , yet it doesn't do anything.


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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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