HyperCalc

HyperCalc is a high precision command line styled calculator (C++, Multiplatform, Qt)

This is a console styled calculator, which is similar to linux "bc".
It designed to be simple, easy to use and fast. The calculations evaluated with correct precedence, using decimal based numbers with high precision to avoid floating point errors. (The base mathematical functions built on boost c++)
You can use hexadecimal, octal and binary numbers as input or output. Available operators/sings:

+ - * / % ^ ( )

The program has many internal functions and loadable functions and you can define new ones (See screenshots for examples)