# Papertape Calculator 3.1

A full function calculator that records all entries and results to a virtual paper tape (text file). Simplifies checking of one`s work and allows multiple results to be displayed simultaneously. Includes equation solving, user defined functionality, binary, octal, hex and time arithmetic, complex numbers, statistics and importation and manipulation of external data sets that include curve fits. Business functions: interest, annuity and loan calculations, present value, cash flow, bond pricing and depreciation; calendar functions. Math functions: trigonometry, statistics, regression analysis, quadratic and cubic equations, prime factorization. Includes conversion factors, constants and area under curve calculations including the bell curve. Ten memory locations store numbers and words together. Given Y, it can solve for X in functions. Solves for molecular weights. CLIENT TIMER allows for recording the division of time among several clients or functions. Graphics window displays bar graphs, pie charts, XY scatter plots, and functions of X to visualize select functionality.