MathGroup Archive 1999

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

Search the Archive

Re: Is it a bug?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg17603] Re: [mg17548] Is it a bug?
  • From: "Richard Finley" <rfinley at medicine.umsmed.edu>
  • Date: Mon, 17 May 1999 02:14:40 -0400
  • Sender: owner-wri-mathgroup at wolfram.com

Not so strange if you use FullForm to look at A....you will see that your 
second expression has the Head "Complex" but your first expression Complex 
is at a different level.  To get what you want you could do something like 
this:

myRule = x_/;Im[x] != 0

Cases[ A, myRule]

Out[] = { 1 + I Sqrt[2], 1 + 6 I }

regards, RF



>>> "F. Mittermayr" <mitterma at linz.vai.co.at> 05/13/99 11:13PM >>>
A = {1 + Sqrt[2] I , 1 + 2 * 3 I};
Cases[A, _Complex]

Out[1] = {1+6 I}

Isn't it a strange result?








  • Prev by Date: HELP: import DXF file
  • Next by Date: Re: Help! How to execute line integral, surface integral or integration around contour.
  • Previous by thread: Re: Is it a bug?
  • Next by thread: Re: Is it a bug?