Mathematica 9 is now available
Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
2007
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2007

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

Search the Archive

Re: Slots & Ampersands

  • To: mathgroup at smc.vnet.net
  • Subject: [mg74374] Re: Slots & Ampersands
  • From: dh <dh at metrohm.ch>
  • Date: Mon, 19 Mar 2007 21:55:20 -0500 (EST)
  • References: <etlq8s$rab$1@smc.vnet.net>


Hi Ajit,

RGBColor[1, 0, 0]& is a function that returns a constant of RGBColor[1, 

0, 0]. The argument is not used, therefore, there is no #.

Any constant function does not use its argument and has no #.

Daniel



Mr Ajit Sen wrote:

>   Dear MathGroup,

> 

>  I've always regarded the Slot and Ampersand as being

>  inseparable in Mathematica (the Laurel & Hardy of 

>  Mathematica?), and was surprised to find one of them absent

> in

> 

>    Plot[Sin[x], {x, 0, 2Pi}, ColorOutput -> 

>       (RGBColor[1, 0, 0]&)]

> 

>  [Help Browser under ColorOutput::colpc ,Examples]

> 

>   Question 1

> 

>   Where is Laurel gone? Is he inside ColorOutput or

>   RGBColor?

> 

>   Question 2

> 

>   Are there other similar constructs in Mathematica? [No # ]

> 

>   Thanks for your help.

> 

>   Ajit Sen.

> 

> 

> 

> 

> 		

> ___________________________________________________________ 

> To help you stay safe and secure online, we've developed the all new Yahoo! Security Centre. http://uk.security.yahoo.com

> 




  • Prev by Date: Re: About TableForm
  • Next by Date: Re: Whitespace weirdness.
  • Previous by thread: Re: Slots & Ampersands
  • Next by thread: Re: Slots & Ampersands