Short description of PG Calculator (Second Edition) 2.2: PG Calculator is a powerful scientific skinable calculator and an excellent replacement for standard calculator. It ofers full customizable user inteface and looks like real calculator on user desktop. PG Calculator works in Algebraic and RPN modes. It works with real and complex numbers, units of measure, allows vectors manipulations. Up to 120 units of measure, built-in unit converter. Time Value of Money Solver, commonly used constatants.