The expression "n^s" represents a mathematical notation where "n" is a base and "s" is an exponent. This notation indicates that the base "n" is multiplied by itself "s" times. For example, if n = 2 and s = 3, then 2^3 equals 2 × 2 × 2, which equals 8. Exponents are a fundamental concept in mathematics, often used in various fields such as algebra, calculus, and computer science. They help simplify calculations involving large numbers and are essential in understanding concepts like polynomials and exponential growth.