【實用工具app】My RPN Calc|最夯免費app-綠色工廠好玩App

My RPN Calc is a versatile RPN calculator with a clean and minimalist interface for iOS7. It is a scientific and financial calculator inspired by the Hewlett-Packard HP-10C series pocket calculators of the 80s, most notably the HP 12C and HP 15C models. It features classical 4 operations, logarithms, trigonometry, statistics, financial, and macros for easy programming. It also features complete support for complex numbers along with 2nd, 3rd, and 4th degree equations solving.Though it is not a complete emulation of the HP-1xC, it can easily substitute them for all classical, scientific, statistical, and financial operations. Exhaustive user manual with many practical examples is available on the home site of the application.Summary of the main functions:- RPN input- Arithmetic functions (+, -, x, /, 1/x, +/-, etc)- Trigonometry, logarithms, hyperbolic trigonometry- Percentages (+, -, variation, total)- Dates- Complete complex numbers support- 2nd, 3rd, and 4th grade equations solving- Macros for simple programming tasks- Conversions (temperature, distance, ...)- Constants (universal, math, ...)Summary of the main statistical functions:- 1- and 2-variable statistics- Sums (Σx, Σx2, Σy, Σy2, Σxy)- Mean, weighted mean, standard deviation- Linear regression- Correlation coefficient- Linear estimationSummary of the financial functions:- Simple and compound interests- Cash flow analysis (NPV, IRR)- Depreciation (SL, DB, SOYD)