True True True 4 4 4 True True False True False cal.insert-digit 4 1 7 True True False True False cal.insert-digit 7 0 0 8 True True False True False cal.insert-digit 8 1 9 True True False True False cal.insert-digit 9 2 5 True True False True False cal.insert-digit 5 1 1 6 True True False True False cal.insert-digit 6 2 1 ÷ True True False True False Divide [/] cal.insert-general '÷' 3 1 True True False True False cal.insert-digit 1 0 2 2 True True False True False cal.insert-digit 2 1 2 0 50 True True False True False cal.insert-digit 0 3 0 . True True False True False cal.insert-numeric-point 1 3 % True True True True False Percentage [%] cal.insert-general '%' 2 3 3 True True False True False cal.insert-digit 3 2 2 × True True False True False Multiply [*] cal.insert-general '×' 3 1 − True True False True False Subtract [-] cal.subtract 3 2 + True True False True False Add [+] cal.insert-general '+' 3 3 = True True False True False Calculate Result cal.solve 4 3 2 ( True True True True False Start Group [(] cal.insert-general '(' 4 1 ) True True True True False End Group [)] cal.insert-general ')' 5 1 True True True True False Clear Display [Escape] cal.clear C 5 √ True True True True False Square root [Ctrl+R] cal.insert-general '√' 5 2 True True True False Square [Ctrl+2] cal.square Exponent True <i>x</i><sup><i>2</i></sup> True 4 2 True True True True False Undo [Ctrl+Z] cal.undo True edit-undo-symbolic 4