RE: Re: Wrestling with Mathematica on Trig Simplification

*To*: mathgroup at smc.vnet.net*Subject*: [mg32270] RE: [mg32247] Re: Wrestling with Mathematica on Trig Simplification*From*: "David Park" <djmp at earthlink.net>*Date*: Wed, 9 Jan 2002 23:37:28 -0500 (EST)*Sender*: owner-wri-mathgroup at wolfram.com

Steven, 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 definition. David Park djmp at earthlink.net http://home.earthlink.net/~djmp/ > 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_]? > >