MvCalc is a compact math and matrix expression calculator.   

Key features of MvCalc:
 * allows you to specify sequences of operations with many brackets
 
* supports most of mathematical functions (trigonometric, hyperbolic, raising to power, extraction of any root,...)
 * supports matrix operations
 * supports special functions (integrals, roots of functions)
 * occupies minimum of desktop space
 * keeps calculations history
 * can be minimized to system tray