Keep track of your calculations by simple structures. VIRTUAL PAPER TAPE:Scroll up and down through the virtual paper tape of your calculation and update individual positions or change typos - SFR Calculator corrects the result immediately.
OVERVIEW BY ANNOTATIONS:Annotate single positions and summarize your calculation in paragraphs with words and sentences. SAVE PATTERNS:Save your recurrent calculations as patterns.
Simply change the figures of a saved calculation with current numbers. Try SFR Calculator for 30 days without any constraints until a commercial license is needed.