AcronGO RPN 2

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A modern and clean approach to original Acron RPN calculator layout (update version of AcronGO RPN), while still an homage to HP lineage of RPN calculators. Light colors defines functions and operators. Large ENTER button at lower-right improves input and ergonomics.

AcronGO RPN

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A modified version of the Standard Acron RPN calculator layout that is to some degree more modern & clean, improving functions accessibility, while still an homage to HP lineage of RPN calculators.

MaxMods2

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Update to MaxMods: added triangle area equation, another temperature and pressure conversion, random button may be pressed multiple times to generate a list of random numbers.

Non-Immersive

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Modified the default layout to not use fullscreen/​immersive mode. Requires version 3.1.2 or later.

MaxMods

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Slight re-arrangement of functions with a focus on minimizing duplicates and combining invertible operations onto same buttons with long press, which is indicated by a triangle foldover symbol in each case. Includes common unit conversions and macro for quadratic and Pythagorean equations.

Long Scale Alternate Answers

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Use long scale text labels (million, milliard, billion, billiard, etc.) when displaying alternate answers.

SI Alternate Answers

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Use metric prefixes (k, M, G, T, etc.) when displaying alternate answers.

In-Place Operators

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Variant of the stock layout with new in-place operators functionality. Perform operations on the selected item in the stack as if it were the top of the stack.

Ultimate 2

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Added a lot of custom functions and subroutines. New toolbar of comparison and boolean operators on the long-press of 9. Added several new solver functions on the long-press of 4. Rewrote entire TVM financial toolbar on long-press of 5. New tools to turn a decimal into a perfect number on the long-press of 6. Operators treat the selected line on stack as the top of the stack. Optimized for 9x18 screens.

Larger Font

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Variant of the stock layout with a larger font used for equations, answers, and the console.

Default Tablet

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Default tablet layout provided with Acron RPN Calculator

new_stock_3

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I've put the functions I use most often as long presses on number and operator keys and I've put labels on the keys to show this. The lower (and smaller) function label on a key is invoked by a long press.

Ultimate

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Variant of stock layout with many extra functions available though long-press. Look for the shaded upper-right corner of toolbar buttons to indicate they have a long-press function. Also, long-press 7 for scientific constants, 8 for unit conversions, 4 for calculus/solver functions, and 5 for TVM financial functions.

HP 32SII

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Pretty decent replica of an HP32SII. It obviously isn't programmable, and there's a few other buttons I had to change or repurpose, but it gives you a good idea of what's possible through layouts.

new_stock_2

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Layout that includes the "where" function. This layout includes a row with six buttons, but to me it looks fine! I've added borders to the buttons and I've changed the "Change sign" key label from "(-)" to a more traditional "CHS".

new_stock

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Here's my first attempt. It adds an extra row of keys above the numbers to give access to some of the new functions. The added keys are: x - a variable for use in the functions below; zero - finds the zero of a function of x; integ - integrates a function of x between specified limits; deriv - finds the numerical derivative of a function of x at a particular value of x; sigma - sums a function of x over a specified range.

More Memory Registers

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Variant of the stock layout that adds 28 memory registers (a-z + theta and phi)

Default Phone

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Default phone layout provided with Acron RPN Calculator

Simple

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Extremely primitive layout based on the Casio SL-240LB. This is a good place to start if you want to write a layout from scratch, especially if you are trying to mimic a physical calculator.