Scientific RPN calculator

Laurent Rodier

- June 26, 2012

1

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Description

My RPN calculator is a scientific and financial calculator inspired by the Hewlett-Packard HP-10C series pocket calculators of the 80s, most notably the HP 11C and HP 15C models.

These software version has borrowed the RPN (Reverse Polish Notation) and the look&feel of those calculators. It features classical 4 operations, logarithms, trigonometry, statistics, and macros for easy programming. It also features complete support for complex numbers along with 2nd, 3rd, and 4th degree equations solving.

Its unique magenta L key allows switching from one layout to another, thus saving space on small displays like smartphones without compromising usability.

Support for gestures allows switching from one keyboard to another by swiping left or right, and a light swipe up or down on a key executes the associated f or g function, without any need to actually press the f or g key.

See the web pages of the application at http://calc.lsrodier.net for complete keys description and samples.

My RPN calculator is compatible with all devices running Android 2.1 and up and supports both horizontal and vertical orientations. It does however requires a device with a minimum screen resolution of 320x480 (or 480x320 according to orientation). Note that tablet screens 1280x800 are properly managed.

Summary of the main functions:

* RPN input

* Portrait/landscape and multi-resolution layouts

* Gesture support for extended/simplified inputs

* 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

* Unit conversions (temperatures, distances, etc)

* Macros for simple programming tasks

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 estimation

* Statistical registers table

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My review

Review from

# Reviews

Helpfulness

Newest

Rating

Helpfulness

All Versions

All Versions

Latest Version

3.8

5 total

5 2

4 2

3 0

2 0

1 1

Harold Reed

I was looking for a I was looking for a replacement for my hp10c. The 15c doesn't have the same features, but this app does an excellent job of emulating it. Worth the price.

A Google User

Big recommendation Fabulous! Costs less than new batteries for my HP 32SII and works a treat. Junking my old calculator now!

User reviews

What's New

Named macros RCL-EEX and STO-EEX support

New layouts (1024x600, Galaxy Nexus, ...)

New i key for direct complex numbers input

Gestures support (swipe and long tap)

Memory registers on Search key

Conversions between values (menu and option)

'Duplicate on ENTER' option

Constants (menu and option)

Display format of the numbers option

Macros for easy programming

Complete statistics functions

Date operations

Additional information

Updated

June 26, 2012

Size

2.5M

Installs

100 - 500

Current Version

1.44

Requires Android

2.1 and up

Content Rating

Everyone

Contact Developer

# Similar

## Droid RPN Calculator

Vandroid Apps

1

Listen Read Device Only Added Installed -Lots of useful functions(sine,cosine,arc sine,combination,deviation,log...)

-Variables

-Most Used functions menu(it learns what you usually use)

-It's programmable. (Create your own functions in JavaScript, the calculator have an interpreter. See the "how to" on our site)

-Functions Help

-Variables

-Most Used functions menu(it learns what you usually use)

-It's programmable. (Create your own functions in JavaScript, the calculator have an interpreter. See the "how to" on our site)

-Functions Help

1

Listen Read Device Only Added Installed ## 15C Scientific Calculator

Vicinno Soft LLC

1

Listen Read Device Only Added Installed As a powerful emulator of HP 15C Scientific Calculator, Vicinno 15C Scientific Calculator provides all functions of the world-renowned HP 15C RPN high-end scientific programmable calculator for Android. It uses the identical mathematics and calculations with the original to give you the same precision and accuracy.

It can perform numerical integration and solve the roots of equations in addition to supporting complex numbers and matrix calculations.

**** Cool Tip: click the upper right logo to see the settings page for more options. ****

**** Please be noted: the f (i) in our app works a little differently from the real calculator: instead of hold and release, just click the f (i), the display will show the imaginary part for a second, then switch to real part automatically. *****

★ Features include:

• Root finder

• Numeric integration

• Complex numbers

• Matrix operations

• Hyperbolic and inverse hyperbolic trig functions

• Probability (combinations and permutations)

• Factorial, % change, and absolute value

• Random number generator

• RPN entry

• Programmable

• enable/disable key click sound

• Comma as decimal point option

• Automatically save/restore settings

• Touch logo to see all settings

• Direct access to support forum from app

• Support Android Tablet

• More

★ Support:

Feel free to contact us at support@vicinno.com.

★ Stay tuned:

Like us: www.facebook.com/vicinno

Follow us: www.twitter.com/vicinno

1

Listen Read Device Only Added Installed ## 15c RPN Scientific Calculator

3GR Technology

1

Listen Read Device Only Added Installed No Airpush Ads *** Please contact us on support@3grtech.com if there is display/resolution problem. MxCalc 12c is compatible & tested for all Android Phones & Tablets.

The best Scientific & Engineering RPN 15c calculator for Windows Mobile since 2006 now available for Android.

Looks as good as the *HP - 15c. Performs as good as the * HP - 15c & more ..

Free Desktop Version !

A set of scientific & engineering functions, support for complex numbers, matrices, Statistical calculations, Trigonometry, Integration, Equation solver & basic arithmetic. Esoteric features include transcendental functions & matrix operations.

RPN Mode Calculator. Programmable. KeyStroke programming- 499 Steps.

Hundreds of built-in functions.Full Screen & Quick Stack Display. Complex number calculations.

Matrix operations. Combinations and Permutations. Polar Rectangular conversions.

Time conversions. Angle conversions.Solver / Root finder. Definite Integration.

Trigonometric functions. Hyperbolic Trigonometry. Advanced Mathematical calculations.

1

Listen Read Device Only Added Installed ## RPN Calculator

Sideralex

1

Listen Read Device Only Added Installed Easy-to-use calculator for simple mathematical operations using powerful Reverse Polish Notation (RPN), like HP calculators as HP-48 series or HP-12C.

This app is ad-supported (that's the only purpose for which network access permission is used). If you prefer, a Premium version is also available with some additional buttons, no ads and no network access permission necessary.

Instructions

=========

The stack

----------------

When you type a number and press Enter, the number is stored in the lowest position of the stack, marked by 1:

If you type another number and press Enter, the second number takes the lowest position, and the first number is pushed to position 2: (if you just press Enter without typing a new number, the first number is duplicated).

You can store up to 50 numbers in the stack, even though the screen only shows the numbers on the 4 lowest positions (1: to 4:)

If you press the Down arrow, the number in the lowest position in the stack is erased, and the others are popped one position down.

Press C to cancel the number while you are typing. Press C again to clear the stack.

Mathematical operations

-----------------------------------

If you press one of the mathematical symbols (+,-,x,÷), the corresponding operation is executed using as operands the two numbers in the lowest positions of the stack.

If you press one of the mathematical symbols while typing a number, the operation is executed between the number in the lowest position of the stack and the number that you are currently typing.

The ± key will change the sign of the number that you are currently typing or that of the number in the lowest position of the stack otherwise.

Example

--------------

If you want to compute the operation 2 x (8 - 5) do as follows:

- Type 8 and Enter

- Type 5 (followed optionally by Enter) and -

(You can also sum -5 doing: 5, ±, +)

- The lowest position of the stack shows the partial result (3)

- Type 2 and x (or 2, Enter, x)

- The final result (6) is shown on the bottom of the stack

1

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Listen Read Device Only Added Installed 1

Listen Read Device Only Added Installed ## Clean RPN

Luke Sleeman

1

Listen Read Device Only Added Installed Clean RPN is a simple and clean RPN calculator. Unlike other RPN calculators which try and mimic the appearance 30 year old desk calculators, clean RPN takes advantage of the screen space and rich input that your phone or tablet provides. The results of your calculation appear while you type and a scrollable list of previous calculations allows you to easily keep track of your history.

Features:

• Perform calculations using RPN - Reverse Polish notation AKA postfix notation

• Results appear as you type your calculation - no need to press enter

• Scroll through a list of history

• Tap on a result from your history to include it in the current calculation

• Support for tablets and phones

• Share your history via e-mail, etc

• Use custom number and function key boards to build your calculation - or your devices built in keyboard

• Wide number of mathematical functions supported

Mathematical functions supported

◦ Multiply, Divide, Subtract and Add

◦ Sin, Cos, Tan,

◦ Shin, Cosh, Tanh

◦ Arc-Sin, Arc-Cos, Arc-Tan, Arc-Tan2

◦ Arc-Sinh, Arc-Cosh, Arc-Tanh

◦ Exponents

◦ log and log10

◦ Square and Cube roots

◦ Ceiling and floor

◦ GCD and LCM

◦ Pi

◦ Factorial

◦ e^x

◦ Modulus

◦ Negate

◦ exchange X,Y

◦ Integer devision

1

Listen Read Device Only Added Installed ## HC-11C Scientific Calculator

Jochen Hammer

1

Listen Read Device Only Added Installed This is a high-end emulation of the famous HP-11C RPN Scientific Calculator.

Using the same mathematics as the original, the HC-11C provides a full set of functions:

- 1/x

- sq. root

- x^2

- LOG x

- 10^x

- LN x

- e^x

- y^x

- INTeger truncation and ABSolute value

- Trigonometric functions (SIN, COS etc.)

- Trigonometric modes: degrees, radians, grads

- H<->H.M.S conversion.

- Engineering display format.

- Basic statistics (mean, linear estimate, correlation coefficient, linear regression.)

- Program memory with 203 program steps

- Programming with the requisite set of keys for conditional tests, SST, BST, INT, FRAC, GTO and MEM.

- Hyperbolic and inverse hyperbolic trig functions.

- Probability (combinations and permutations).

- Factorial, % change, and absolute value.

- Random number generator.

Using the same mathematics as the original, the HC-11C provides a full set of functions:

- 1/x

- sq. root

- x^2

- LOG x

- 10^x

- LN x

- e^x

- y^x

- INTeger truncation and ABSolute value

- Trigonometric functions (SIN, COS etc.)

- Trigonometric modes: degrees, radians, grads

- H<->H.M.S conversion.

- Engineering display format.

- Basic statistics (mean, linear estimate, correlation coefficient, linear regression.)

- Program memory with 203 program steps

- Programming with the requisite set of keys for conditional tests, SST, BST, INT, FRAC, GTO and MEM.

- Hyperbolic and inverse hyperbolic trig functions.

- Probability (combinations and permutations).

- Factorial, % change, and absolute value.

- Random number generator.

- Haptic feedback

- Preserve Memory

- Save and load current memory and stack

The current memory and stack can be saved at any time in individual files. This allows to store all your programs and setups without the need to re-enter your code and data each time you need a different setup.

More information and manuals can be obtained on http://www.hpmuseum.org

Supported Screensizes:

all screensizes with a resolution higher than 480 x 320

IMPORTANT NOTE REGARDING LICENSE CHECK

For the license check, there is an network connection required. This license check is done only during program start and if there is a network connection present.

A valid license is cached in the app, so if no network connection is available (e.g. in Fligth-Mode or if you are traveling to a foreign country), the current license state is used and the app will start up even without a present network connection.

1

Listen Read Device Only Added Installed ## Simple RPN Calculator

W. Myers

1

Listen Read Device Only Added Installed This is a simple RPN (Reverse Polish Notation) calculator designed for basic mathematical calculations. It is designed to replace the four function algebraic calculator found on android phones. The calculator display shows the top four values on the stack (X, Y, Z, and T for those familiar with HP calculator terminology), and holds up to 46 more. In addition to the add, subtract, divide, and multiply functions, the calculator also includes a square root and power function.

1

Listen Read Device Only Added Installed ## MxCalc 15c RPN Scientific Calc

3GR Technology

1

Listen Read Device Only Added Installed ** Please contact us on support@3grtech.com if there is display/resolution problem. MxCalc 15c is compatible & tested for all Android Phones & Tablets. All user reported issues are resolved in version 1.2.2 ****

The best Scientific & Engineering RPN 15c calculator for Windows Mobile since 2006 now available for Android.

Looks as good as the *HP - 15c. Performs as good as the * HP - 15c & more ..

Free Desktop Version !

A set of scientific & engineering functions, support for complex numbers, matrices, Statistical calculations, Trigonometry, Integration, Equation solver & basic arithmetic. Esoteric features include transcendental functions & matrix operations.

RPN Mode Calculator. Programmable. KeyStroke programming- 499 Steps.

Hundreds of built-in functions.Full Screen & Quick Stack Display. Complex number calculations.

Matrix operations. Combinations and Permutations. Polar Rectangular conversions.

Time conversions. Angle conversions.Solver / Root finder. Definite Integration.

Trigonometric functions. Hyperbolic Trigonometry. Advanced Mathematical calculations.

1

Listen Read Device Only Added Installed ## RPN Converter

Paweł Maślak

1

Listen Read Device Only Added Installed RPN Converter is a very handy mathematical tool - a converter from Reverse Polish Notation(postfix notation/ONP) to standard infix notation and the other way round.

The input expression can be entered with both numbers and symbols, the latter of which may be interpreted as either function symbols, when the word is three letters long, or values, in other cases. E.g the expression "sin(x)" will be interpreted as the value of the function sin for value x, Meanwhile "abcd+cd" will be interpreted as a sum of two values symbolized by abcd and cd.

The application takes into acount the unar operator "-" as well as multiplication operator ommission in cases when the context is clear.

1

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Listen Read Device Only Added Installed ## HP-35 Emulator Calculator.

ACUSTICA VISUAL Media Group

1

Listen Read Device Only Added Installed The HP-35 was the first scientific pocket calculator in the world (with exponential and trigonometric functions). Also used Reverse Polish Notation (RPN), being the first scientific calculator algebraic history.

And now through this emulator for the HP-35, where both perfectly emulates the LED screen of the original 15-digit calculator physically and how we can make use of it in a virtual like you're actually physically in our hands through our Android device.

The HP-35 calculated arithmetic functions, logarithmic and trigonometric functions.

And now through this emulator for the HP-35, where both perfectly emulates the LED screen of the original 15-digit calculator physically and how we can make use of it in a virtual like you're actually physically in our hands through our Android device.

The HP-35 calculated arithmetic functions, logarithmic and trigonometric functions.

Some historical curiosities of this calculator are:

- The display of 15 characters in the HP 35, when the reverse was seen, could produce a limited number of alphabetic messages. For example, 710.77345 would read as "SHELL OIL". The sample was probably more extravagant +40 57738.57734 E would be read as "Oh Hells Bells".

- The HP 35 was just 5.8 inches long and 3.2 inches wide. This was the pocket size of William Hewlett, of there as the "pocket calculator".

- The power requirement of the LED display was responsible for the short life between battery charges the HP 35, about three hours. To prolong the operating time and prevent damage from overuse of the slide switch on / off, users could press the decimal point key to force the display to illuminate only a segment of the LED.

- The HP 35 calculated arithmetic functions, logarithmic, and trigonometric, however, full implementation used only 767 carefully chosen instructions (7670 bits), in what is a marvel of concise programming.

- The introduction of the HP 35 scientific calculators and other similar capacity by Texas Instruments soon signaled the end of the slide rule as a status symbol among science and engineering students. The covers of the rules of calculations were disappearing to make way for the covers of the "electronic slide rule", and universities began to abandon the slide rule classes of their curriculum.

- The HP 35 was the beginning of a family of related calculators all sharing similar mechanical packaging:

- The screen was unique in the sense that multiplexing is designed to illuminate only one LED at a time segment, instead of a single-digit LED, because HP investigations had shown that this method was perceived by the human eye as more Bright energy equivalent.

- The calculator used three NiCd batteries "AA" assembled in a removable battery pack, owner of HP design. Battery packs and replacement are unavailable, leaving 35 HP depending existing alternating current, or the users must rebuild the battery pack using batteries themselves available. An external battery charger was available and could also function calculator from charger, with or without batteries installed.

Internally, the calculator was organized around a serial processor chipset (a bit) floating point number processing 56-bit, 14-digit numbers representing BCD.

It was introduced at a price of U.S. $ 395.1 and was available from January 4, 1972 to 1975. During that time over 300,000 units sold.

Before the HP 35, the only practical portable devices to perform trigonometric and exponential functions were slide rules. At that time, existing pocket calculators had only four functions, ie could only add, subtract, multiply and divide. Originally it had been known simply as "The Calculator", but Hewlett suggested that it should be called the HP 35 because it had 35 keys.

HP 35 was developed in two years, HP 35 was released in 1972.

1

Listen Read Device Only Added Installed ## Mobi Calculator PRO

IP

1

Listen Read Device Only Added Installed Universal, every day use calculator with scientific features. One of top.

Good for simple and advanced calculations!

Good for simple and advanced calculations!

* Math expressions calculation (developed on RPN-algorithm but no RPN-calculators' kind UI!)

* Percentages (calculation discount, tax, tip and other)

* Radix mode (HEX/BIN/OCT)

* Time calculation (two modes)

* Trigonometric functions. Radians and degrees with DMS feature (Degree-Minute-Second)

* Logarithmic and other functions

* Calculation history and memory

* Digit grouping

* Cool color themes (skins)

* Large buttons

* Easy and very user friendly UI

* Very customizable!

* More features will be added. Stay in touch! :)

In the PRO-version only:

* Ability to store records of the history (up to 1000, FREE - 50)

* Ability to edit expression with up to 5 lines on the screen (FREE - 3)

* Additional themes (Business, Ice Cream Sandwich)

The list will be increased!

ATTENTION!

Sometimes we got emails with complaints that Market doesn’t allow to download a purchased application. It is Market’s problem. You should wait and/or try to restart your device.

Please contact Market support or us if you have any problems with it.

http://facebook.com/mobicalc

http://twitter.com/mobicalc

OLD NAME is Cube Calculator.

Free version is avalible in Google Play.

---

KW: mobicalc, mobi, calc, cubecalc, android calculator, percentage, percent, scientific calculator, science, advanced, sine, simple, best, kalkulator, algebra, basic

1

Listen Read Device Only Added Installed ## WRPN 16c

Emmet Gray

1

Listen Read Device Only Added Installed It uses Reverse Polish Notation (RPN), which uses the ENTER key instead of the "=" (equals) key.

In addition to all the functions you'd expect from an ordinary calculator, WRPN 16c also has many features specifically designed for the computer professional:

• Word sizes from 1-64 bits per word

• Signed math (1's complement, 2's complement, unsigned)

• Logical operators (and, or, xor, not, masks, etc)

• Bit-wise operators (shift, rotate, rotate with carry, etc)

• 32 storage registers

• 4 position stack

• 203 lines of program memory

WRPN 16c is available on other platforms, such as Windows, MacOS, and Linux from the following web site http://www.wrpn.emmet-gray.com

1

Listen Read Device Only Added Installed ## a Enter b RPN Calculator

The MotionProgrammer

1

Listen Read Device Only Added Installed This calculator is an RPN calculator with a stack of 128 lines.

What makes this calculator not common is the binary window.

First of all, as you can see the screen, each line of the stack contains 3 elements: decimal, hexadecimal and binary

So for instance, you can enter an hex number, “BF32” and then click on enter to put it in the stack. Each element is updated in real time.

If you want to enter it in binary format, Click on “Next”, and you have the functions for binary operations, then “BIN” button, “Prev” for previous keyboard and now the keyboard is only in binary mode/input.

Click on Next and you can perform binary operations, like for instance “OR” or “NOT”.

“Home” goes back to the main window. Then, you have the standard operators like “+”, “-“, “*” and “/” and also functions to manage the stack.

It is also possible to add comments which could be anything like for instance the unit of the result

The Logarithm Keyboard has all the standard “power” functions.

The Trigonometry Keyboard with true values of PI. For instance, Arc Sin of 1 has Pi/2 as a result. And if you need the value of ‘Pi/2’, just click on “value Pi” and the value in Degree gives 90. You can of course make the calculation in rad or degree.

I hope you will enjoy all the functionality of our high performing calculator.

Thank you.

1

Listen Read Device Only Added Installed # More from developer

## 5x7 LED chronometer

Laurent Rodier

1

Listen Read Device Only Added Installed A simple yet effective 5x7 led chronometer as we usually see around sport arenas. It features typical options like pause, stop, resume, restart, and markers.

See the web pages of the application for complete description.

5x7 LED chronometer is compatible with all devices running Android 2.1 and up, and supports both horizontal and vertical orientations.

1

Listen Read Device Only Added Installed ## Scientific/Financial RPN calc

Laurent Rodier

1

Listen Read Device Only Added Installed My RPN calculator 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.

These software version has borrowed the RPN (Reverse Polish Notation) and the look&feel of those calculators. 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.

Its unique magenta L key allows switching from one layout to another, thus saving space on small displays like smartphones without compromising usability.

Support for gestures allows switching from one keyboard to another by swiping left or right, and a light swipe up or down on a key executes the associated f or g function, without any need to actually press the f or g key.

See the web pages of the application at http://calc.lsrodier.net for complete keys description and samples.

My RPN calculator is compatible with all devices running Android 2.1 and up and supports both horizontal and vertical orientations. It does however requires a device with a minimum screen resolution of 320x480 (or 480x320 according to orientation). Note that tablet screens 1280x800 and 1024x600 (including Kindle Fire) are properly managed.

Summary of the main functions:

* RPN input

* Portrait/landscape and multi-resolution layouts

* Gesture support for extended/simplified inputs

* 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

* Unit conversions (temperatures, distances, etc)

* Macros for simple programming tasks

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 estimation

* Statistical registers table

Summary of the financial functions:

* Simple and compound interests

* Cash flow analysis (NPV, IRR)

* Depreciation (SL, DB, SOYD)

* Financial registers table

1

Listen Read Device Only Added Installed ## Scientific/Financial RPN DEMO

Laurent Rodier

1

Listen Read Device Only Added Installed ** DEMO VERSION of My RPN Calc 1.43 **

My RPN calculator 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.

These software version has borrowed the RPN (Reverse Polish Notation) and the look&feel of those calculators. 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.

Its unique magenta L key allows switching from one layout to another, thus saving space on small displays like smartphones without compromising usability.

Support for gestures allows switching from one keyboard to another by swiping left or right, and a light swipe up or down on a key executes the associated f or g function, without any need to actually press the f or g key.

See the web pages of the application at http://calc.lsrodier.net for complete keys description and samples.

My RPN calculator is compatible with all devices running Android 2.1 and up and supports both horizontal and vertical orientations. It does however requires a device with a minimum screen resolution of 320x480 (or 480x320 according to orientation). Note that tablet screens 1280x800 and 1024x600 are properly managed.

Summary of the main functions:

* RPN input

* Portrait/landscape and multi-resolution layouts

* Gesture support for extended/simplified inputs

* 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

* Unit conversions (temperatures, distances, etc)

* Macros (up to 10 programs) for simple programming tasks

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 estimation

Summary of the financial functions:

* Simple and compound interests

* Cash flow analysis (NPV, IRR)

* Depreciation (SL, DB, SOYD)

1

Listen Read Device Only Added Installed ## My talking calculator

Laurent Rodier

1

Listen Read Device Only Added Installed The Clouseau Calc is a talking 4-operations calculator with a strong French accent. As a calculator it is useful by itself as it offers the common operations found on small calculators (+, -, /, x, %, 1/x) along with a single memory register. It is however unique when the voice option is turned on (default), as it also speaks, reading/spelling the computed values or describing the executed functions, not to mention the "Oh la la" mode.

See the web site pages at http://clouseau.lsrodier.net for a complete listing of the vocabulary and available idioms and accents.

Clouseau Calc is compatible with all devices running Android 2.1 and up and supports both horizontal and vertical orientations.

1

Listen Read Device Only Added Installed ## Bbuzz, basketball buzzer

Laurent Rodier

1

Listen Read Device Only Added Installed Bbuzz, Basketball buzzer, is a 5x7 LED countdown chronometer as we usually see around sport arenas, especially with basketball games. When it reaches zero, it plays a buzzer sound. Both the countdown time and the buzzer may be tuned through the options dialog.

A typical usage is basketball, where one touchs the screen whenever the ball is in play or the referee whistles, and the player icon is pressed when the ball changes hand. Bbuzz also supports the 14s rule when a foul is made less than 14 seconds before the end of the 24 seconds.

Bbuzz is compatible with all devices running Android 2.1 and up and supports both horizontal and vertical orientations.

1

Listen Read Device Only Added Installed ## My RPN Calc User's Guide

Laurent Rodier

1

Listen Read Device Only Added Installed This is the user's guide of My RPN Calc. This is the same as the help pages available at http://calcjqm.lsrodier.net but conveniently packaged in an application for offline viewing/reading.

1

Listen Read Device Only Added Installed ## Thank You!

Laurent Rodier

1

Listen Read Device Only Added Installed A most "useful" application displaying Thank You. A good match to the classical Hello World application though this one tries to display the Thank You text in as big letters as possible.

Did I mention it actually displays Merci on French devices and Grazie on Italian ones ? Definitly the "must have" application in the category of the useless ones !

1

Listen Read Device Only Added Installed ## Financial RPN calculator

Laurent Rodier

1

Listen Read Device Only Added Installed My RPN calculator 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 11C models.

These software version has borrowed the RPN (Reverse Polish Notation) and the look&feel of those calculators. It features classical 4 operations, logarithms, statistics, financial,and macros for easy programming.

Its unique magenta L key allows switching from one layout to another, thus saving space on small displays like smartphones without compromising usability.

Support for gestures allows switching from one keyboard to another by swiping left or right, and a light swipe up or down on a key executes the associated f or g function, without any need to actually press the f or g key.

See the web pages of the application at http://calc.lsrodier.net for complete keys description and samples.

My RPN calculator is compatible with all devices running Android 2.1 and up and supports both horizontal and vertical orientations. It does however requires a device with a minimum screen resolution of 320x480 (or 480x320 according to orientation). Note that tablet screens 1280x800 are properly managed.

Summary of the main functions:

* RPN input

* Portrait/landscape and multi-resolution layouts

* Gesture support for extended/simplified inputs

* Arithmetic functions (+, -, x, /, 1/x, +/-, etc)

* Logarithms

* Percentages (+, -, variation, total)

* Dates

* Unit conversions (temperatures, distances, etc)

* Macros for simple programming tasks

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 estimation

* Statistical registers table

Summary of the financial functions:

* Simple and compound interests

* Cash flow analysis (NPV, IRR)

* Depreciation (SL, DB, SOYD)

* Financial registers table

1

Listen Read Device Only Added Installed ## Voice Office/Kids calculator

Laurent Rodier

1

Listen Read Device Only Added Installed VOCal is a classical office calculator with a virtual tape to print all operations. When operating in children mode, the additions, substractions and multiplications are presented in columns as children are used to compute. The optional voice option turns on/off the reading or spelling of the numbers and operations.

Common features:

* Common math operations (+, -, x, /, %, inv)

* One memory register

* Virtual tape presenting all executing operations

* Landscape/portrait layouts

* Left/right-handed landscape layouts

* Haptic feedback (optional)

Virtual tape features:

* Printing of executed operations

* Double press the C key to clear the tape

* Kid mode to print base operations using school layout

* Colored for easy reading

Voice features:

* May be turned on/off

* All keys are spelled

* All results are either spelled/read (option)

* Long tap a virtual tape line to read/spell the operation

See http://vocal.lsrodier.net for further details.

1

Listen Read Device Only Added Installed ## Cyclodraw drawing toy

Laurent Rodier

1

Listen Read Device Only Added Installed Cyclodraw is a mandala geometrical drawing application. It mostly produces mathematical curves technically known as hypotrochoids and epitrochoids, along with gears, ellipses and rectangles. Curves can be layed together to produce fantastic drawings. The application has been designed for creativity (especially children creativity) without any mathematical knowledge ever required.

1

Listen Read Device Only Added Installed