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Re: irrational and real exponents

  • To: mathgroup at
  • Subject: [mg98111] Re: irrational and real exponents
  • From: Jens-Peer Kuska <kuska at>
  • Date: Mon, 30 Mar 2009 05:06:15 -0500 (EST)
  • Organization: Uni Leipzig
  • References: <gqq3ql$7m7$>
  • Reply-to: kuska at


Mathematica will never truncate anything. This mean
I^2 is evaluated to -1 and E^(-2 Pi I) is evaluated to 1


congruentialuminaire at wrote:
> Hello MathGroup:
> Originally I was confused also about imaginary exponents also but help
> cleared that up.
> Help for Power also has this sentence: "For certain special arguments,
> Power automatically evaluates to exact values."
> Does this imply that for irrational and real exponents, they are
> "truncated" to rationals before they are evaluated?
> Thanks in advance for any info on this.
> Roger Williams
> Franklin Laboratory

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