There are so many Calculators out there, but none of them is really equal to a mechanical adding machine that nearly every businessman has on his table, this one has it all plus capabilities associated with a Windows environment. No more expensive paper-rolls .. all for free ! Features include a check-strip with comfortable text input per position, correction possibilities (rectifying, adding and deleting values), built-in formula interpreter, sales tax functions, cache (memory function), percentage calculation, EURO-conversion, floating point- and fixed point-calculation, subdivision into thousands, fast correction key, display of the results in task strip and window title line, printing with heading and date/time, Excel-export. Memory arithmetic with any tape value and the running subtotal , Printing tapes on any available printer and to text files ,Porting tapes to any clipboard compatible application ,One key sales tax closeout with user set percentage , Automatic decimal point insertion ,Tape navigation keys , User Guide to which the user can easily add topics, Optional tooltips with help just by positioning the mouse cursor