The program SNCalc is intended for complicated calculations. It has plently of mathematical functions and canbe used with different numerations. A filled analyzer can be used for calculating of complicated expressions. In case of often usage of repeated operations you can take advantage of 12 customizing buttons. Also there are additional modules: graph functions painting (2D-Graph), calculating of polynomials radicals of any power, function of operating with dates, converter of various physical quantities. In addition to this, there are financial functions and formated lead-in anf lead-out of numbers. All the operations you have done are entered in a special calculations list. The program can be put in SysTray.