MathGroup Archive 2007

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

Search the Archive

Logical evaluation

  • To: mathgroup at
  • Subject: [mg82249] Logical evaluation
  • From: Michael Mandelberg <mmandelberg at>
  • Date: Tue, 16 Oct 2007 03:27:40 -0400 (EDT)

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: Integrate question
  • Next by Date: expansion of a complex exponential in terms of Bessel functions
  • Previous by thread: Re: Integrate question
  • Next by thread: Re: Logical evaluation