a1APPS Calculator includes a virtual tape, the ability to insert a new value in the tape as well as append a value to the end of the tape. The virtual tape allows audits, edits, and updates to the values you've entered so that you don't have to just reset the calculator and try again. We've included two displays, the top is the tape and the bottom is the subtotal.
Jump to the top or bottom of the tape and scroll the tape at any time to review the values that you've entered. If you identify a mistake, just enter a new value. You can also change a "+" to a "-" by just clicking.
