Papertape Calculator keeps a record of every entry made by the user. It displays, on a "papertape", all of the entries made in a calculation and saves the user time since a review of the papertape is all that is needed to check one's work. Re-entry of the data is not required.

It also simplifies several otherwise complex calculations such as mean, median, mode, variance, standard deviation, root mean square, linear least squares regression and multiple regression.

This calculator updates the relevant data as each data point entry is made. This shows the user how each data point contributes to the final result.

The calculator also offers the user a variety of pre-programmed calculations for lines, planes, quadratic and cubic equations, bessel functions, loan and amortization calculations and annuities.

Here are some key features of "xPapertape Calculator":

· Papertape records all data entries and operations. Text entries to papertape are also possible. All entered data and operations are archived.
· Data entered can be saved for later use.
· Sections of papertape can be saved for user's records. Last saved papertape can be recalled for additional use.
· Individual numerical entries on the papertape can be double clicked to the display for further use in calculations.
· Compound interest calculations.
· Simplified linear least squares regression analysis
· Simplified multiple regression analysis which allows use of dummy variable.
· Multi-function calculator that allows for running calculations.
· Parenthesis function allow for user control of order of operation execution.
· Trigonometric functions.
· Conversion calculations.
· Constants.
· 10 memory locations with window that displays memory contents.
· Currency format for basic functions.
· Detailed instructions and documentation.
· Use of constant functionality.
· Percent calculations.
· Calculations of on line and plane.
· Quadratic and Cubic equations.
· Bessel Functions.
· Home mortgage and amortization calculations.
· Annuity calculations.
Improvements and bug fixes in previous versions:
· Bug that might cause unwanted exits from the software is gone.
· Papertape readout now accomodates overlong lines of input and scrolls more easily.
· Display includes exponent when scientific notation is used.
· Memory accomodates text and numbers for labeling and units.
· Keyboard entry now available.
· Papertape archive now callable from calculator.
· Keyboard entry can be used with the regression functions. (new instructions).
· Large factorial values are now supported.
· Spaces can now be used in labels.
· Use of memory values with parentheses is possible.
· Keyboard backspace works for all entered digits
· Improved recall method for saved values.

Limitations:

· 30 days trial

What's New in This Release: [ read full changelog ]

· Molecular weight calculations now available.
· Further refinements to equation solver that can solve for 'x', in a function of 'x', given a value of 'y.'
· Cash Flow calculations now repeatable by entering zero for discount rate or cash flow.
· More thorough corrections in division by zero problem.
· Ideal Gas Law equation calculation repaired.
· Protection from taking a non-integer root of a negative number.
· Curve fit calculation for user defined function repaired.
· 'Exit and Save Memory' menu item now saves the active papertape to the archive.
· Complex roots of cubic equation corrected.