Complex Number Exponentiation  TOPIC_SOLVED

Complex numbers, rational functions, logarithms, sequences and series, matrix operations, etc.

Complex Number Exponentiation

Postby DeanSchlarbaum on Fri Jul 10, 2009 3:10 am

How does one calculate a whole number (1, 2, 3,....) raised to a complex number (of the form a + bi) power? Could someone "walk me through," the process of, say, calculating 2 ^ (2 + 2i)? Is the result a "number" of the form that could/can be graphed on a complex number coordinate system? Is there a general method for these types of calculations -- of, say, doing x ^ (a + bi)? Any and all help with this aspect of math. greatly appreciated. My interest in these types of calculations comes from seeing the Reimann Zeta Function (and also the Euler Zeta Function). Dean
Posts: 1
Joined: Fri Jul 10, 2009 2:58 am




Postby stapel_eliz on Fri Jul 10, 2009 12:55 pm

The process involves polar coordinates, etc, and isn't usually covered until you're in calculus. But you can read many nice lessons online:

. . . . .Google results for "complex powers"

Have fun! :wink:
User avatar
Posts: 1708
Joined: Mon Dec 08, 2008 4:22 pm

Return to Advanced Algebra ("pre-calculus")