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The Powers that Be (Posted on 2003-11-25) Difficulty: 4 of 5
Is it possible for two complex numbers to have a real exponentiation?

In other words, if x and y are complex (each have the form a+bi), show that x^y can have a real value, or prove that it is impossible.

Note: i is the imaginary value defined as the number that yields -1 when squared. a and b are any real numbers, but b is not 0.

See The Solution Submitted by DJ    
Rating: 4.4444 (9 votes)

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re: What's a complex number? | Comment 15 of 21 |
(In reply to What's a complex number? by Charlie)

Yes. This is tradition. If you want to be super clear you say b is not 0 in a+bi, like in the note that is part of the problem statement.
  Posted by Richard on 2003-11-27 00:32:18

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