Formula: Editable Calculator

A calculator with a formula you can actually edit. Tap anywhere in an expression to change a number or an operation. Select, copy and paste text as you would in a text editor. The result updates while you type. EDIT WITHOUT STARTING OVER Select part of a formula and tap ( to wrap it in parentheses. Undo and redo changes, or continue calculating from the current result. KEEP YOUR CALCULATIONS Save expressions and results to history, grouped by day. Search past calculations, give important ones a name and pin them. Choose a limit from 50 to 1,000 ordinary calculations; pinned calculations stay beyond that limit. Your unfinished formula returns when you reopen the app. CALCULATE NATURALLY Use parentheses, addition, subtraction, multiplication, division, powers and square roots. Implicit multiplication works too: 6+2(2+2) = 14. Formula follows Excel arithmetic precedence. It evaluates expressions; spreadsheet cells and Excel functions are not supported. PRIVATE AND OFFLINE No account, advertising, tracking or in-app purchases. Calculations are stored on your iPhone and are not sent to the developer. No syncing is required. Available in English and Russian. Designed for iPhone, with light and dark appearance.