# 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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# 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

500 - 1,000

Current Version

1.44

Requires Android

2.1 and up

Content Rating

Everyone

Permissions

Report

Flag as inappropriate Offered By

Laurent Rodier

Developer

Visit Website Email lsrodier@gmail.com

Laurent Rodier
Via Venezia 18
20054 Nova Milanese (MI)
Italia

# Similar

## 15C Scientific Calculator

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

## Droid RPN Calculator

-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

Feel free to contact us.

## Free42

Free42 is a re-implementation of the HP-42S calculator and the HP-82240 printer.

It is a complete rewrite, not using any HP code, and it does not require an HP-42S ROM image.

Free42 is an Open Source project. The executables and source code are released under the terms of the GNU General Public License, version 2.

All third-party code used in Free42 is either in the public domain, or licensed under terms compatible with GPLv2, or used with the authors' permission.

It is a complete rewrite, not using any HP code, and it does not require an HP-42S ROM image.

Free42 is an Open Source project. The executables and source code are released under the terms of the GNU General Public License, version 2.

All third-party code used in Free42 is either in the public domain, or licensed under terms compatible with GPLv2, or used with the authors' permission.

## HP-35 Emulator Calculator.

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.

## RPN Calculator

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

## 15C Scientific Calculator Free

It is a demo version of Vicinno 15C Scientific Calculator. It demonstrates how Vicinno 15C works on various Android devices. The functionality of the demo version is limited since both f and g keys are disabled. If you are interested in its pro version, please search for "Vicinno" on Google Play.

15C Scientific Calculator

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

## WRPN 16c

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

Note: The source code to WRPN 16c is also available!

## Scientific Calculator for FREE

Our scientific calculator is provided to you in full and for free. Do you have difficulty in calculating scientific matter you do not worry use scientific calculator application. This complete calculator is helpful for you as a student to find a precise mathematical results. Can have quick access to certain mathematical functions when needed, so that the right choice for you

Scientific Calculator we have features such as:

* The history with this feature you can see the history of the previous results,

* Memory Features

* Traditional algebraic or RPN operation

* Result history * Unit conversions

* Physical constants table

* Percentage

* Binary, octal, and hexadecimal (can be enabled in Settings)

* Trig functions in degrees, radians or graduate

* Scientific, engineering and fixed-point display modes

* Configurable digit grouping and decimal point, and many others in the full scientific calculator

## CALCU™ Stylish Calculator

Express your style with the calculator made just for you. Choose from 12 colorful, stylish themes to brighten your day while you calculate with ease.

CALCU™ is a breeze to use for everyday calculations, with all the scientific capability you need for work and school just a swipe away. And for your most demanding needs, CALCU™ allows you to add or remove the functions and constants you need to make the perfect calculator designed by you, for you.

The Droid Lawyer rates CALCU™ 4.5 out of 5, calling it “a great replacement for Android’s stock calculator”... and we couldn’t agree more!

Features

★ Beautiful and intuitive interface with gesture based control and navigation

★ See instant results of your calculations as you enter them

★ Swipe up on the keypad to reveal scientific keypad

★ Swipe down on the display to see calculation history

★ Swipe up on the scientific keypad to customize it

★ Create user-defined constants

★ Choose between simple and full keypad layout

★ Choose from 12 stylish themes

## MK 61/54

Emulator of "Electronika MK 61" and "Electronika MK-54" RPN programmable calculators.

MK-61 was the best seller of all USSR programmable calculators of 1980-s (B3-34, MK-54, MK-56, MK-61, MK-52).

Calculators are emulated on microcode level so they behave exactly like the original devices, including all non-documented features and inaccurate calculations. For ease of use application features saving and loading emulation states.

This app's emulation engine Java code is based on C++ source of Felix Lazarev's emu145 project.

Emulation was highly optimized for speed and should run in real time on any phone.

Hint 1: touch calculator's indicator to toggle slow/fast mode. Indicator's blinking looks better in slow mode.

Hint 2: you can choose between MK-61 and MK-54 using menu option that becomes visible when calculator is switched off.

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

History of changes in previous versions:

MK-61 v1.0 - the first working version

MK-61 v1.1 - fixed UI bugs, speed optimization

MK-61 v1.2 - keep state after pressing Home or Back

MK-61 v1.3 - "About" dialog, enlarged digits, added state saving/loading (up to 50 slots)

MK-61 v1.4

- fix emulation for entering negative power of ten

- 10x speed increase - now works even on old Android devices

- touch indicator to toggle fast/slow mode

- on fast phone use slow mode for blinking

- fixed key press detection

- fixed indicator symbols size

- stable states saving - will be compatible with future versions

MK-61 v1.5

- main screen user interface completely redesigned from the scratch:

* authentic look (as much as possible)

* adaptive behavior that fits any screen from 2 to 10 inch

- launcher icon redesigned

- added slight vibration on button press, more sensible on angle mode change, even more intensive for on/off switch

- screen never goes off even when nothing is touched for a long time

MK-61 v1.6

- added "Settings" page to let user choose vibration and/or disabled screen auto-off

- indicator font size fix for tablets

MK-61 v1.7

- fixed ГРД angle mode switch position (was acting as Degrees mode instead of Grads)

- saved states now can have names. Hint: load and save state to rename it.

- use up to 99 saved states now instead of 50

- added Russian user interface translation

- a number of polishing UI tweaks on the main and settings screens

MK 61/54 v2.0

- added MK-54 emulation

- application name was changed to "MK 61/54" to reflect the fact it supports both devices

- when calculator is switched off, selector button chooses between "MK 61" and "MK-54"

- save states remember which calculator type they were saved with

- old save states use MK 61 device

- added soft "Menu" button on devices that lack hardware menu button

- added support for older Android versions, including Android 1.6

- additional UI polishing for tablets

v2.1:

- "MK 61 ↔ MK-54" button is now menu option (available when calculator is off)

- "About" moved from settings to menu, now with usage hints

- fixed calculator's display font size issue:

* entering power of ten should not split display into two lines (was an issue on some devices)

* width should be fully used

- ШГ→/ШГ←/↔ got better labels

- fixed/improved layout on devices with low and medium resolution

v2.2:

- fixed UI scaling issue on normal-mdpi screens

- improved large-mdpi screens

If you still have issues - please let me know device/firmware this happens on.

- added thin border around buttons

## Scientific Calculator - FREE

CalcTastic FREE is a powerful yet easy to use, full-featured scientific, statistical and conversion calculator with NO ADS!!

Visit our website for more high-resolution screenshots. http://www.calctastic.com

If you find CalcTastic Free useful, post a review or consider purchasing our full version to support development. The full version also includes:

- Fractions

- Full Landscape Support

- 7 Additional Themes (12 total)

- Android's ONLY full-featured Programmer's Calculator

- Base conversions between Hexadecimal, Decimal, Octal and Binary

CalcTastic FREE includes the following:

GENERAL

- Algebraic, Sequential or RPN input methods

- Postfix notation.

- Expression or Stack Display

- Expression History with 20 records

- Calculator Stack with 50 registers

- Memory with 10 registers

- 5 high-quality themes

- Copy and Paste

- Configurable numeric display (decimal point and digit grouping)

- Intuitive long-click feature removes the need to press SHIFT

- Easier to use than an HP 11C / 15C

SCIENTIFIC

- Degree/Minute/Second Conversions

- Standard, Scientific, Engineering and Fixed Decimal Notations

- Configurable Precision from 0 - 12 digits

- Table of 44 Physical Constants

- Over 210 different conversion units across 14 categories

- Trig functions in Degrees, Radians or Grads (w/ hyperbolic equivalents)

- Conversions between Degrees, Radians and Grads

- Natural and Base-10 Logarithms

- Percent and Delta Percentage

- Mod(Remainder), Absolute, Ceiling, Floor and Round operations

STATISTICAL

- Factorial and Gamma Functions

- Combinations and Permutations

- Random Number Generator (random decimal or random in given range)

- 15 Single-Variable Statistics commands operate on all stack entries

- Quantity, Min, Max, Range, Sum, Median

- Arithmetic Mean, Geometric Mean, Mean Squared

- Sum Squared, Sum of Squares of Variance

- Sample Variance, Sample Standard Deviation

- Population Variance, Population Standard Deviation

## My Calc: Scientific Calculator

★ My Calc is a fully featured All-In-One calculator for your everyday calculations. ★

★★★★★ "It has everything from a currency converter with live rate updates to a scientific calculator that has a range of functions, unit conversions and constants to a percentage calculator that'll tell you how much a loan will cost. It's brilliant. Since moving from Windows Phone 8 I've been looking for a program that equals calculator² on that platform and I think I've found something even better. This is THE calculator app you need. I'll be deleting the others that just weren't quite good enough. This excels." - Davy Strange (Feb 21, 2014)

★★★★★ "Quite Nice. I am always on the lookout for tools like this app. It is very good." - Leland Whitlock (Nov 9, 2013)

★★★★★ "Nice app. Works great helps me very much in the office and on the go. Keep up the great work." - Randy Salazar (Nov 7, 2013)

My Calc includes: Scientific calculator, Standard, Currency, Tip and Percent calculator which can be accessed from the menu.

● My Calc Features:

✓ Result history

✓ Unit conversions

✓ Physical constants table

✓ Traditional algebraic operation

✓ Permutations (nPr) & Combinations (nCr)

✓ Trigonometric and hyperbolic functions in radians, degrees and grads

✓ Scientific, engineering and fixed-point display modes

✓ Calculation memory support

✓ Full support for percentages (20 + 10% = 22)

✓ Decimal degrees into degrees, minutes, and seconds converter

✓ Tip calc - calculates tip quickly and easily and split the bill between any number of people.

✓ Percent calc (calculation discount, tax, margin and other)

✓ Currency Converter - Track Currencies from around the world with live currency rates. Easily convert between your favorite currencies.

## Solo Scientific Calculator

Scientific Calculator application with latest features!

Great Scientific Calculator supporting Matrix Operations!

Features:

★ Result history

★ Traditional algebraic or RPN operation

★ Unit conversions

★ Percentages

★ Physical constants table

★ 10 memories

★ General Arithmetic Functions

★ Trigonometric Functions - radians, degrees & gradients - including hyperbolic option

★ Power & Root Functions

★ Binary, octal, and hexadecimal (can be enabled in Settings)

★ Scientific, engineering and fixed-point display modes

★ Configurable digit grouping and decimal point

★ Fraction calculations and conversion to/from decimal

★ Degrees/minutes/seconds calculations and conversion

★ Landscape mode

★ User-customizable unit conversions

★ User-customizable constants

★ Log Functions

★ Modulus Function

★ Random Number Functions

★ Permutations (nPr) & Combinations (nCr)

★ Highest Common Factor & Lowest Common Multiple

★ Statistics Functions - Statistics Summary (returns the count (n), sum, product, sum of squares, minimum, maximum, median, mean, geometric mean, variance, coefficient of variation & standard deviation of a series of numbers), Confidence Interval, Digamma Function, Exponential Density, Gamma Function, Hypergeometric Distribution, Normal Distribution, Poisson Distribution

★ Conversion Functions: area, distance, volume, weight, density, speed, pressure, energy, power, frequency, magnetic flux density, dynamic viscosity, temperature, heat transfer coefficient, time, angles, data size, fuel efficiency & exchange rates

## RPN-12C

RPN-12C is a bit exact emulator for the great HP Voyager series, model 12C. It employs the same mathematical computation found in the original calculators, providing high precision calculations

User Interface features:

• two additional keys (mapped to the display and logo in landscape mode) are dedicated to preference settings and help

• portrait and landscape view mode with autorotate

• customized keystroke behavior (click, glow, vibration)

• toggle mode for the f and g prefix keys

• back label reference information display

Calculator features:

• RPN (Reverse Polish Notation) entry mode, programmable

• Functions are identical to those found in the original 12C e.g. computation of loans, cash flow, bonds, time-value money, depreciation, amortization, IRR and more

# More from developer

## 5x7 LED chronometer

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.

## Cyclodraw drawing toy

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.

## Voice Office/Kids calculator

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.

## Financial RPN calculator

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

## Thank You!

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 !

## My talking calculator

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.

## Scientific/Financial RPN DEMO

** DEMO VERSION of My RPN Calc 1.61 **

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)

## Scientific/Financial RPN calc

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 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

## Bbuzz, basketball buzzer

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.