Services & Resources / Wolfram Forums / MathGroup Archive
-----

MathGroup Archive 2008

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

Search the Archive

Re: 0.0 is different with 0?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg90050] Re: 0.0 is different with 0?
  • From: dh <dh at metrohm.ch>
  • Date: Fri, 27 Jun 2008 06:17:35 -0400 (EDT)
  • References: <g3vkss$kfs$1@smc.vnet.net>


Hi,

consider: fs_Real. This matches an expression with head Real. 0 (zero) 

has head Integer. 0. has head Real. If you want to test both cases , you 

may e.g. use: _?NumericQ.

hope this helps, Daniel



damayi wrote:

> Dear all

> Here is an example to show my question.

> SF[N_Integer, a_Real, fs_Real] :=

>  Table[Sin[(1 + fs)*k*2 Pi/N + a], {k, 0, N - 1}]

> 

> SF[32, 0.1, 0.0] can show the table contents, however, SF[32, 0.1, 0]

> cannot show the result. Why?

> 

> Best Regards

> mayi

> 2008-06-26

> 





-- 



Daniel Huber

Metrohm Ltd.

Oberdorfstr. 68

CH-9100 Herisau

Tel. +41 71 353 8585, Fax +41 71 353 8907

E-Mail:<mailto:dh at metrohm.com>

Internet:<http://www.metrohm.com>




  • Prev by Date: Re: Problem with NMaximize
  • Next by Date: Re: Ploting integral curves
  • Previous by thread: Re: 0.0 is different with 0?
  • Next by thread: Re: Ploting integral curves