Smart Calculator

Smart Calculator All in one :)
Smart calculator, the display of which indicates expressions and gives easy operation for editing.
The Smart calculator includes features below:
*Four arithmetic operations, root, percentages, and tax calculations
*Calculations with parentheses
*Easy editing by using a cursor operation
*Expressions history and answer history
*Configurable grouping separator and decimal point
Four arithmetic operations:
1 + 2 - 3 × 4 ÷ 5 = 0.6
*Hex Decimal
*Binary