Re: Simple Plot3D/Function Syntax issue
- To: mathgroup at smc.vnet.net
- Subject: [mg68606] Re: Simple Plot3D/Function Syntax issue
- From: Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>
- Date: Fri, 11 Aug 2006 04:40:40 -0400 (EDT)
- Organization: The Open University, Milton Keynes, UK
- References: <ebeb66$ldv$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
JTolman wrote:
> When I enter
> f = e^-(x^2 + y^2) (x^2 + 2y^2)
> It gives me a syntax::noinfo error but the output looks like the
> correct textbook style function.
>
> Also, when I try to plot it
> Plot3D[e^-(x^2 + y^2) (x^2 + 2y^2), {x, -3, 3}, {y, -3, 3}]
> It of course gives me not machines-size real number errors, which I am
> assuming have more to do with my original syntax error. I've tried
> several variations but can't figure out what needs to be corrected.
>
The Mathematica Book --> Mathematica Reference Guide --> Some General
Notations and Conventions --> A.3.1 Function Names:
"The names of built-in functions follow some general guidelines.
â?¢ The name consists of complete English words, or standard mathematical
abbreviations. American spelling is used.
â?¢ The first letter of each word is capitalized.
â?¢ Functions whose names end with Q usually "ask a question", and return
either True or False.
â?¢ Mathematical functions that are named after people usually have names
in Mathematica of the form PersonSymbol."
http://documents.wolfram.com/mathematica/book/section-A.3.1
HTH,
Jean-Marc