MathGroup Archive: April 2002 [00374]

[Date Index] [Thread Index] [Author Index]

Re: Specify a variable

To: mathgroup at smc.vnet.net
Subject: [mg33913] Re: Specify a variable
From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
Date: Tue, 23 Apr 2002 07:13:23 -0400 (EDT)
Organization: Universitaet Leipzig
References: <a9muer$a8v$1@smc.vnet.net>
Reply-to: kuska at informatik.uni-leipzig.de
Sender: owner-wri-mathgroup at wolfram.com

Hi,

Mathematica has not data types, it use  patterns.

A floating point argument is the restricted pattern:

YourFunction[x_Real]:=Some code

and a pattern for a matrix is restricted by:

YourMatrixFunction[m_?MatrixQ]:=some othe code

Regards
  Jens

Guojun Zhu wrote:
> 
> Can I indicate a variable's type, a function, a real number, a matrix or
> a complex number?
> 
> Can I specify it in functions such as D[], Integrate?

Prev by Date: Why these graphs differ?

Next by Date: Re: how to make and paint an interpolation of two variables

Previous by thread: Specify a variable

Next by thread: numerical methods for PDE