PG Calculator

PG Calculator is a powerful scientific calculator and an excellent replacement for standard calculator. It offers a fully customizable user interface and resembles a real calculator. It works in Algebraic and RPN modes, recognizes real and complex numbers, and allows vectors manipulations. It supports up to 120 units of measure with the ability to make conversions between consistent units, and allows input in binary, octal, hexadecimal, and exponential formats. Eighty built-in algebraic, trigonometric, hyperbolic, logical, conversion, and statistical functions are provided along with a list of commonly used mathematical, physics, and chemical constants. Simple financial calculations are possible with built-in Time Value of Money Solver. (Source: http://freecode.com/)