Re: Function of N variable
- To: mathgroup at smc.vnet.net
- Subject: [mg121093] Re: Function of N variable
- From: Ethan Dyer <ethansdyer at gmail.com>
- Date: Sun, 28 Aug 2011 04:03:52 -0400 (EDT)
- Delivered-to: l-mathgroup@mail-archive0.wolfram.com
- References: <201108271217.IAA17765@smc.vnet.net>
Sam,
Mathematica allows one to define functions that take an arbitrary number of arguments using double underscore (BlankSequence) or triple underscore (BlankNullSequence)
For instance F[args__]:={args} takes in any number of arguments except zero.
A function defined with three underscores can take any number including zero.
Ethan
On Aug 27, 2011, at 8:17 AM, Sam Takoy <sam.takoy at yahoo.com> wrote:
> Hi,
>
> I have put together a few function for differential geometry in 3D.
> All my functions were of the kind F(z1_, z2_, z3_). Now I want to
> generalize to 4D, then 5D, etc. Is there a good way to represent a
> function of N variables? For example, I want to be able to say grad[F]
> [???] to obtain a list of N function (partial derivatives) of N
> variables. I understand these are vague questions, but I am only
> looking for some keywords.
>
> Many thanks in advance,
>
>
> Sam
>
- References:
- Function of N variable
- From: Sam Takoy <sam.takoy@yahoo.com>
- Function of N variable