allRPNCalc Calculator

allRPNCalc Calculator

By Ernest Brock

  • Category: Finance
  • Release Date: 2008-09-12
  • Current Version: 4.2
  • Adult Rating: 4+
  • File Size: 1.79 MB
  • Developer: Ernest Brock
  • Compatibility: Requires iOS 11.0 or later.
  • App Ratings:
    4/5 ( 167 App Reviews)
  • Price:
allRPNCalc Calculator App Ratings: 4
Based on 167 App Reviews

allRPNCalc Calculator App Details

allRPNCalc is a versatile calculator that uses the powerful Reverse Polish Notation logic system combined with an automated 4 level stack to compute answers to complex mathematical problems. The keyboard layout and display have been optimized for use on an iPhone,iPod Touch and iPad. Large keys with sound feed back give you typing confidence and the last function keyed is always displayed. Functions are logically laid out to eliminate multiple key entry for most problems. Display: Results are displayed in fixed, fraction, scientific or engineering notation with from 0 to 14 significant digits displayed. In programmer’s mode hex, decimal, octal or binary (with windowing) can be displayed. Calculations are carried out in industry standard IEEE double format with 14+ significant digits and exponents ranging +/-308. Math: +, -, ×, ÷, ln, log, e^x, 10^x, y^x, x², x³, 1/x, √x, ∛x, fraction part, integer part, absolute value, random, seed, mod Trigonometry: sin, cos, tan, asin, acos, atan, sinh, cosh, tanh, asinh, acosh, atanh, to radians, to degrees, to rectangular, to polar, to hours, to hours minutes seconds, hours minutes seconds add and subtract, triangle solver, π, π/2. Trig functions can be computed in radians, degrees or gradians. Statistics: sum plus, sum minus, mean, weighted mean, standard deviation, population standard deviation, linear estimate x, y and correlation coefficient, combination, permutation, factorial (gamma), percent, delta percent, percent of total Programer’s functions: and, or, xor, not, shift left, shift right, rotate left, rotate right, word sizes 8, 16, 32, 48 Conversions: 47 world currencies and over 100 commonly used metric, english and other conversion factors used in scientific, engineering and financial calculations. Financial: time value of money calculations, n, i, pv, pmt, fv, depreciation (straight line, sum-of-years, declining balance), bond price and yield to maturity, amortization, net present value, internal rate of return, up to 80 cash flows, days between dates, date plus days, rounding. Storage: 4 level automatic stack with lastX, exchange and roll down, 20 general purpose storage registers, register arithmetic +,-,×,÷ , 6 dedicated registers for statistics, 80 cash flow entries, 5 financial registers.


allRPNCalc Calculator App Screenshots

App Reviews

  • User

    By DonHM
    I like this implementation of RPN. Would be nice if there were a native iPad version — that somehow took advantage of the larger screen.
  • Hp-12c +++++

    By Byrrno
    For those of us who grew up using Reverse Polish Notation, RPN is built into our hand. This little calculator app is easy to use, and has many more features than the HP-12C. Weight and volume conversion is often really useful, and it's easy here. Currency conversion! Get updated conversion rates with a couple taps. I've been using this great app for about 7 generations of iPhones.
  • allRPNCalc is best one out there

    By Katainasia
    I've tried most of the HP calcs for iphone. This is the most intuitive interface and includes super helpful conversions, including currencies. Love it. Thanks for updating!!
  • Love the app

    By PithCA
    Really nice app. Has as many features as one could reasonably ask for and is very easy to use. Good implementation of RPN, just like HP calculators back in the day.
  • Outstanding RPN calculator...

    By Neptue
    If you like HP calculators, this app should serve you well. I have been using this calculator for years, and it remains one of my all time favorites. It takes a successful HP calc and adds several useful features: unit conversions, currency exchange rates. I also value its ability to perform scientific and financial calculations. I have tried and used more than 20 calculator apps. Some do offer features not in this one. However, it is in my top two calculator apps. So glad the developer has updated this app to be compatible with current iOS versions. Hope other legacy app developers will do the same. The fear of losing this one kept me from being willing to update to the latest iOS.
  • Works great, except

    By CharlieS3
    I’ve been using this app for many years and find it great as a financial and general calculator. I calculate loan payments routinely. It has always worked great. However , recently I looked at an amortization chart and could not exit the chart. Stopping and restarting the app did not clear it. I had to restart iOS to get back to the main page. Please fix!
  • allRPNCalc - the best

    By MP35217
    I have bought very few apps for my phone. The purchase of allRPNCalc is the exception. I spent a few dollars on this several years ago and it is the best use of money for an accessory ever. A powerful RPN calculator, that does everything I need and more. It is regularly updated to keep it in sync with all the updates iOS undergoes. I highly recommend this app to anyone that needs an RPN calculator. You will not find better.
  • Great RPN calculator

    By J. A. Young
    I use it all the time!
  • Great RPN calculator!

    By The Meerkat
    I used to work for the HP calculator division that pioneered RPN. Trust me. This is beyond a full featured RPN machine. Well thought out. Great job! Each version is even better than last. Now at v4.1. Very happy customer.
  • Excellent

    By SaidWhatToo
    Been using for years. All the functionality plus more. Never a crash.