Common functions

Main Index; Mathematics; - Factorial
*Also performs the reverse calculation.* - Polynomial evaluation
*Evaluates polynomials up to the 7th order.* - Powers and logarithms
*Gives values of exponential functions.* - Roots and powers
*Square, cube and fourth roots and powers.* - Quadratic equation
*Solves for x or y.* - Sum of series
*Geometric and arithmetic series.*