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

MathGroup Archive 2007

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

Search the Archive

Re: Logical evaluation

  • To: mathgroup at smc.vnet.net
  • Subject: [mg82328] Re: [mg82249] Logical evaluation
  • From: Syd Geraghty <sydgeraghty at mac.com>
  • Date: Wed, 17 Oct 2007 04:15:41 -0400 (EDT)
  • References: <200710160727.DAA08825@smc.vnet.net>

Michael,

I just evaluated both your input and output and both evaluated to True.

My System

$Version 6.0.1 for Mac OS X x86 (32 - bit) (June 19, 2007)
  $OperatingSystem MacOS X V 10.4 .10
   MacBook Pro 2.33 Ghz Intel Core 2 Duo  2GB


Have you tried a fresh  kernel. It would help if you identified your  
system and version of Mathematica.

Cheers .. Syd


Syd Geraghty B.Sc., M.Sc.
sydgeraghty at mac.com
San Jose, CA

On Oct 16, 2007, at 12:27 AM, Michael Mandelberg wrote:

> I can't figure out why the following does not evaulate to TRUE:
>
> In[100]:= \[ExponentialE]^(-\[ImaginaryI] x) + \[ExponentialE]^(\
> \[ImaginaryI] x) == 2 TrigToExp[Cos[x]]
>
> Out[100]= \[ExponentialE]^(-\[ImaginaryI] x) + \[ExponentialE]^(\
> \[ImaginaryI] x) ==
>  2 (\[ExponentialE]^(-\[ImaginaryI] x)/
>     2 + \[ExponentialE]^(\[ImaginaryI] x)/2)
>
> Any ideas?
>
> Michael Mandelberg
>
>



  • Prev by Date: Re: Integrate question
  • Next by Date: Re: Transparently passing on options to other functions
  • Previous by thread: Re: Logical evaluation
  • Next by thread: Re: Logical evaluation