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Re: Re: Log(ln) Function + 2 Parameters + Greater

  • To: mathgroup at smc.vnet.net
  • Subject: [mg89323] Re: [mg89298] Re: Log(ln) Function + 2 Parameters + Greater
  • From: "W_Craig Carter" <ccarter at mit.edu>
  • Date: Thu, 5 Jun 2008 00:45:37 -0400 (EDT)
  • References: <g22tp5$ikl$1@smc.vnet.net> <g237c4$q2n$1@smc.vnet.net>

Hello Jerry,
Practically, there is no difference to the user---so it is a matter of
choice, but is does serve to reiterate
the maxim "everything is an expression."

There are times when the form of the function may reflect your
thinking about it: here is a trivial example:

myBesselJ[i_][z_] := BesselJ[i,z]

bessels[n_,y_] := Sum[myBessel[i][y],{i,1,n}]

On Wed, Jun 4, 2008 at 5:37 AM, Jerry <Jer75811 at yahoo.com> wrote:
> Sir, I have never seen a function definition in the form you
> give:
> f[a_][x_] := x (a + Log[x])^2
>
> After a bit of playing with it, I don't see the difference
> between this and
>
> f[a_,x_] := x (a + Log[x])^2
>


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