This is a free math calculator, which is an easy way to enter in any number and any exponent and then find the solution. Simply enter in any number and then an exponent and press the calculate button! The best mathematical tool for school and college! If you are a student, it will helps you to learn algebra. Note: Exponentiation is used in many other fields, including economics, biology, chemistry, physics, as well as computer science, with applications such as compound interest, population growth, chemical reaction kinetics, wave behavior, and public key cryptography.