Mathematical calculator RionaCalc Pro

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 70 functions
remembers all last expressions and results
works with complex numbers, common fractions, date, time and stings
works with numbers in non-decimal scales of notation: binary, octal and hexadecimal numbers
solves the quadratic and cubic equations
finds root, minimum, maximum of the function and calculates value of define integral in any interval
has built-in module for the units of measurement conversion
unlimited number of user-defined variables
can draw 2D and 3D graphics
has module for testing and training your calculation skills
multi-language interface.

What is new in this version:

Changed function solve2 and solve3 behaviour: show value of all roots instead of root number.