Rionnag Software - calculator RionaCalc

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Rionnag Software presents small and powerful calculator RionaCalc.

RionaCalc is a simple but powerful calculator that works with arithmetic expressions. The major features of the program are:

Supports more then 20 mathematical and logical operators and more than 40 functions,
works with complex numbers, common fractions, date, time and strings
has built-in module for the units of measurement conversion
can draw 2D and 3D graphics.
and more...