Adding Tape Printing Calculator with virtual tape!

Tired of adding numbers twice just to be sure you are correct? Problem solved. File (Comma Separated Value)- Save multiple tapes - Undo an unlimited number of times* Customize *- Optional decimal behavior: stays in fixed location as you enter numbers or traditional hit decimal key- Alternate large Zero key or small 0 and 00 keys- Option: add line numbers to tape - Option: set number of Clear Entry touches before tape is cleared