Basic calculator with parentheses is an easy to use and handy calculator for everyday tasks. Features: Calculator performs basic calculations: addition, subtraction, multiplication, and division. Percentage calculations (%). In addition to basic operations, the calculator supports expressions with nested parentheses. History of recent calculations (25 entries). Shares history via email. Back and forward buttons to check and use recent calculations. Backspace button. Current expression is displayed above the result. Portrait and landscape modes. 7 color themes to customize background and button colors.