# Roots and complex numbers

1. Aug 2, 2005

### cjellison

There are n nth roots to every complex number (except zero).

My question: How many "roots" are there when you take a complex number to an irrational or transcendental number. For that matter, how do we define raising a number to an irrational number? How do we define raising a number to a transcendental number?

Hmm....how is this defined? By a taylor series?

$$e^{1/e}$$

2. Aug 2, 2005

### Hurkyl

Staff Emeritus
By definition, in the complexes:

$$z^w := \exp(w \mathop{\mathrm{Log}} z)$$

3. Aug 3, 2005

### HallsofIvy

Staff Emeritus
In the complex plane, a number to an irrational (whether transcendental or not) power has an infinite number of values.

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