Upgrade your free with paper tape history for reviewing and editing past calculations. or export the history to iBooks, Dropbox, email, or . Save and retrieve files, add comments, and modify entries. The iPad version includes a full-sized keypad.
Perform basic calculations including addition, subtraction, multiplication, and division. Calculate percentages and use nested expressions. View full equations and intermediate results. Access a history of 25 recent calculations.
Perform calculations with labeled numbers and visual connections. Edit expressions by dragging results or extracting sub-expressions. Automatically update linked values and view calculation history in real-time.
