SpicyRPN vs RLM

SpicyRPN brings the feel of a classic calculator to iPhone and iPad, with high-precision arithmetic and a comprehensive collection of scientific, statistical, and financial functions. Choose Reverse Polish Notation (RPN) for direct stack-based calculation, or algebraic entry for familiar expressions with parentheses. Switch between modes while keeping your work. • High-precision mathematics Adjust working precision independently of display formatting. Use fixed, scientific, or engineering notation to suit the calculation. • A flexible RPN stack Choose a fixed stack depth or an unlimited stack. Inspect its contents, rearrange values, and recall previous operands with Last X and Last Y. • Scientific and complex calculations Work with powers, roots, logarithms, trigonometry, hyperbolic functions, factorials, gamma functions, and more. Enter and display complex numbers in rectangular or polar form. • Financial tools Calculate time value of money, loan amortization, net present value, internal rate of return, bond price and yield, depreciation, and date differences. • Statistics Accumulate observations and calculate means, sample standard deviations, linear regression, estimates, and correlation. • Unit conversions Convert between units across a wide range of measurement categories, including temperature, length, mass, volume, and energy. • Memory and continuity Store values in numbered memories or retrieve them by numeric keys. Your calculator state is saved automatically so you can return to your work. • Designed for learning and daily use Use portrait or landscape layouts, built-in function help, and a detailed manual with worked examples and mathematical references. SpicyRPN is open-source software. Visit spicyrpn.com for the manual and release-specific source code.

The RLM-10CX application is a general purpose calculator with a special focus in science and engineering. It is based in the Hewlett-Packard HP-10C calculator, but specially designed to bring up the most of your iOS devices and , at the same time, conserving the easy of use and all functions originally provided by the real calculator. >Finance Menu: •Account Balance: Credit line type account based on cash transactions and interest rates applied. •Amortization: Loan Amortization Schedule for a single loan payment or from several payments at once. •Bond Price & Yield: Bonds calculations in an easy way with all options and values at sight. •Black-Scholes Options: CALL, PUT and “Greeks” calculations of the Black-Scholes European option valuation model. •Equal Periods: Calculations with Cash Flows occurring at regular time intervals. •Unequal Periods: Calculations with Cash Flows occurring at arbitrary dates. •Depreciation: Calculates depreciation with SL, SOYD, DB or MACRS methods and conventions. values at sight. •Interest Conversion: Nominal and effective interest conversion. •Time Value of Money: Compound Interest problems involving money earning interest over a period of time. >Business Menu: •Bill-Tip-Split: Calculates the sharing of a Bill with Tip. •Break-Even: Analyze the following relation: Profit = (Price - Var.Cost) • Units - Fix.Cost •Currency Exchange with on-line rates. •Percents & Margins: Calculates %Change, %Total and Business margins. Date / Time Menu: Calculates Date and Time intervals with all values at sight. >Statistics Menu: •One-Variable Statistics: Calculations for one variable data samples. •Two-Variable Statistics: Calculations for two variables data samples. •Curve Fitting: 6 Regression models to fit a curve based on two variables data samples. •Probability: Combinations, permutations, Normal, Exponential, t-Student and Weibull probability distributions. >Scientific Menu: •Complex Numbers: Operations and functions with complex numbers. •Logarithms, Trigonometric, Hyperbolic and Number Alteration functions. •Triangle Solution: Solves a Plane & Spherical triangles. •3D Vectors: Operations and functions with vectors in Cartesian, Spherical or Cylindrical coordinates. •Universal Constants: All the NIST-CODATA physical constants values and descriptions. •Units Conversion: Physical units conversion completely customizable. >Convert Menu: •Angles & Polar: Convert angles between DEG,RAD,GRAD,DMS or Slope % & Polar-Rectangular coordinates. •Currencies: world currencies conversions with manual input or on-line current rates. •Interest Rates: Nominal and effective interest conversion. •Units: Physical units conversions. >Program Menu: Create, edit or load previously saved programs. >Solver Menu: Solve arbitrary algebraic equations entered and saved in the equation editor and creates a menu with all the variables to solve any of them. >Utilities Menu: •General Settings: Customize the calculator to your preference. •Storage Registers: Store and perform operations directly over the calculator’s storage registers. •Memory Content: Shows all memory content edit, backup or restore. •Help Documents: learn by example about all menus. >Editors: submenu to select data editors. System requirements: iOS 15.0 or above. 30 days Free-Trial. In-App-Purchase: One-Payment for life. License Agreement: http://www.apple.com/legal/itunes/appstore/dev/stdeula Disclaimer: THIS IS NOT A HEWLETT PACKARD CALCULATOR, AND IS NOT SPONSORED IN ANYWAY BY HEWLETT PACKARD OR ANY OF ITS SUBSIDIARIES.