Re: Re: Wrestling with Mathematica on Trig Simplification
- To: mathgroup at smc.vnet.net
- Subject: [mg32618] Re: Re: Wrestling with Mathematica on Trig Simplification
- From: "Ranit" <fink at ee.columbia.edu>
- Date: Thu, 31 Jan 2002 01:46:03 -0500 (EST)
- Organization: Columbia University
- References: <email@example.com>
- Sender: owner-wri-mathgroup at wolfram.com
Do you know a good book or site that teaches mathematica?
"David Park" <djmp at earthlink.net> wrote in message
news:a1j768$r58$1 at smc.vnet.net...
> It isn't absolute necessary to write the definition this way.
> m[a_, b_][t_] := a Sin[t] + b Cos[t]
> In you initial posting you didn't define a and b as arguments of the
> function at all. I think that is because you considered them as parameters
> and t as the variable. Writing the above form cleanly separates the
> parameters from the variable.
> Also you can easily write the derivative with respect to the variable.
> m[a, b]'[t]
> a Cos[t] - b Sin[t]
> But it is really a matter of taste and how you are going to use the
> David Park
> djmp at earthlink.net
> > From: Poppo [mailto:rlsmith at his.com]
To: mathgroup at smc.vnet.net
> > Why write m[a_,b_][t_] instead of m[a_,b_,t_]?
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