Mathematica 9 is now available
Services & Resources / Wolfram Forums / MathGroup Archive
-----

MathGroup Archive 2011

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

Search the Archive

Only real data

  • To: mathgroup at smc.vnet.net
  • Subject: [mg122120] Only real data
  • From: Jörg Schröder <HB-Kowalczyk-Schroeders at t-online.de>
  • Date: Sat, 15 Oct 2011 06:03:21 -0400 (EDT)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com

Hello,



I have a problem to exclude complex solutions. I tried



data1={2,3/4,1.3,=E4}



{2,3/4,1.3,=E4}



Cases[data1, Except[_Complex]]



{2,3/4,1.3}



and got, what I expected. But when I have data like



{0,0,-I Sqrt[3],I Sqrt[3]}



The above doesn't work. Is this due to a different Head? Is there an easy
way to filter the non-complex data?



Thanks in advance



Greetings



Joerg



################

Dr. J=F6rg Schr=F6der

Bremen, Germany



  • Prev by Date: How to create this kind of list
  • Next by Date: Re: Plot function with two arguments
  • Previous by thread: Re: How to create this kind of list
  • Next by thread: Re: Only real data