query: What is exponentiation?
passage: Exponentiation
Exponentiation is a mathematical operation, written as bn, involving two numbers, the base b and the exponent n. When n is a positive integer, exponentiation corresponds to repeated multiplication of the base: that is, bn is the product of multiplying n bases:
passage: Exponentiation
This infinite series, which is often taken as the definition of the exponential function ez for arbitrary complex exponents, is absolutely convergent for all complex numbers z.