Droid48

Arnaud Brochard

- September 21, 2014

1

Offers in-app purchases

Loading device compatibility...

(10,873)

# Description

Emulator of the HP 48 scientific calculator, using RPN. Port of the X48 project (sources available on github). HP48's "grayscale mode" cannot be emulated.

Visit www.hpcalc.org for a large program collection.

Cool tip: tap the HP's LCD to show/hide a simpler numeric pad !

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# Reviews

Helpfulness

Newest

Rating

Helpfulness

All Versions

All Versions

Latest Version

4.6

10,873 total

5 8,377

4 1,494

3 484

2 186

1 320

Seth Henry

Good emulation, needs some debugging I love my old HP48GX, but I find I use this almost as much because my phone is always with me. Unfortunately, it seems to have regressed a bit lately. It is keeping the phone awake, even after you close it. I have had it drain battery unknowingly due to this until I saw it at the top of the list in wake lock detector. I can work around it, but this is a potential problem.

Lou Harlow

48!! Got my kids HP48's /LIB card when they were in high school - got used to RPN still like it! Thanks!

nunya aynun

RPN user This is not free inop pos. There are much more honest app providers. I dumped it and rate one to get the message out

Dennis mullen

Needs an update, but a great app. I've used Droid48 for a couple of years and like it even better than my old HP 48. Since updating to Android 5.0 I have been experiencing freezes during keyboard entry, never a problem before. One minor annoyance is that when one rotates the device to landscape (intentionally or not), the stack is cleared and one has to re-enter anything in progress.

Marco Rizzardo

HP RPN cals were the best I still think the RPN system, is the best way to do cals. I had one at uni and used it extensively until it was stolen (if you read this you can still give it back, please). This app is almost like the real thing, the only thing it is missing is the feeling of a real HP keyboard.

Derek Smart

Lose of Data issue solved Droid48 / HP48GX app my on Galaxy s5: This app keeps locking up and losing all my Folders and Data.

User reviews

My favorite app Many years ago, my HP48 was my prize possession. This app is the next best thing to being there. Addendum: I've upgraded my phone to a Nexus 6, which runs Android 5. There seems to be an issue somewhere between the new run-time and this program, as Droid 48 frequently freezes during key entry. It worked flawlessly on my old S3, though.

Best app of all! THE APP KEEPS STALLING EVERY TIME I TRY TO USE IT. PLEASE WILL YOU FIX THIS PROBLEM? .This is truely the most valuable app on my tablet. A GREAT BIG thank you! For creating this app. This must be the most LEGENDARY calculator ever created. Many Thanks! MB James.

Owner of the previous generation HP 15C HP calculators are second to none. I still use my old HP 15C and this emulator has allowed me to discover the wonderful next generation that came in the 90s. RPL is wonderful, same as having the stack in full view on display. I also use an emulator of the 15C but the 48G is so much better that I don't use my good old HP15C anymore. The only drawback is the haptic feedback being too weak, it would be great to be able to adjust haptic duration or strenght. It would also be great an HP 50G emulator!!!

I never enjoyed HP RPN until this app. Using this app allows users to experience the benefits of using HP RPN. However, I have some trouble using it on my Samsung Galaxy Tab 10.5 - occasionally locks up. And developer might consider removing the calculator 'OFF' button as it causes problems and is not needed.

Love the app, but is starting to lock up. Love the app. Locks up on my HTC One M8, though. Fast becoming unusable. I am forced to "Force Stop" it, which forces me to set it up again. But setting it up always seems to LOCK it up, and there I go again. Very frustrating. I even tried uninstalling and re-installing...to no avail. Please fix!

Fantastic, is just like my 48, except I can have it with me all the time :o) htc One M8

like it's the real thing.... but better!! Since the mid nineties, using the HP48Gx - now on the Android, superb... the only thing needed to make this emulator true-to-life is an increase in the size of physical device its installed on - the Samsung Note series is almost there... but think they have to build an 8.3 inch phablet with comperable screen size to do so. just have to wait I suppose. this app is like having the original in-pocket - perfect. no other emulator comes close...

Freezes constantly on Nexus 5 I sure wish this app worked because the HP48 is the best engineering calculator around. The app is almost guaranteed to freeze after 10 calculations. It also freezes the same on my old Samsung Epic 4G.

Simply the best calc app! Great emulator for one of the best calculators made during my college years ...HP48g. Thank you so much. Im really thrilled to be able to carry this app around in my cell phone. Update: Freezes up constantly on Nexus 5. Hopefully the developer will find a solution for this. At least for replacement there's also the droid48sx app that resembles this app a lot and is very stable on most Android versions.

Problems with lollipop The UI of this app does not correctly handle magnification gestures (under accessibility menu) running on lollipop. When magnification gestures are turned on, the app will randomly lose keypresses. Other than that, it's a great.

Very excited I found this app when I was searching for a reverse calculator. When I saw it, I was so excited. I installed it. I have been happily calculating ever since. My original HP48GX has lines running through the screen and I have missed it so much. I tried to donate but I received an error: "The item you requested is not available for purchase." I will keep trying to give you some money until it works. Thank you, thank you, thank you for making this app. I am thrilled everyday. Smiles all around. Warmest regards, Kristina.

Very good Emulator. Users should also Install Droid48 reader. This allows them to export their work. Everything should backed up to the Android, as the emulator, like the calculator, eventually crashes and wipes out. Save all your libraries and regularly archive the HOME directory to a port. Use Droid 48 Reader to export the HOME directory archive to the android. This makes recovery easy. I have spent a lot of time on this emulator. GX emulation is good. SX Emulation is poor and nothing will import or export. For the SX install droid48sx.Note on Port2: DO NOT SET THE SIZE TO 4 MB. Use on 1 MB or smaller.

Locks up Constantly locks up and requires a reinstall to get working again on my Samsung Galaxy Note 4. Junk!

Would be awesome if it didn't crash The HP 48G, used to be my go-to calculator for nearly everything. Unfortunately this app despite being very promising and working fantastically in the past, has kept freezing for a long time. I will happily change my rating when this issue is resolved, because I used to love it, but for now I cannot really recommend it.

Great when it works Love the app other than the fact that it freezes all the time. Once the memory is cleared or the app is reinstalled it's works again for a while. It's a very handy app when it works. It needs an update or something to fix problems that make me hunt periodically for a different app that has the equation library and solver because I'm tired of typing in my equations over and over again when I have to clear the memory. (Galaxy S5)

Working fine but clock does not updated when is showed on screen. Other emulator go48g does.

Review deleted

# What's New

- You can donate if you like the app!

- Freezing should occurs less, I'm still working on the issue

- Minimal screen is accessible again with a single touch !

- Menu is then accessible on the right side of the LCD screen ("3 dots" appearing on top right, at each app launch)

# Additional information

Updated

September 21, 2014

Size

1.3M

Installs

500,000 - 1,000,000

Current Version

1.61

Requires Android

2.2 and up

Content Rating

Everyone

Permissions

Report

Flag as inappropriate Offered By

Arnaud Brochard

Developer

# Similar

## Calculator

Two calculators in one. Scientific / Algebraic / Fraction or simple desk calculator. Ideal for everyday, office, school, technical and scientific studies.

Choose what you prefer for each moment

STANDARD CALCULATOR

Simple calculator with the same functionality as a classical desk calculator

- Square root

- Memory

- k feature

- Percent Calculation: add, subtract, mark-up/mark-down, % of increase, % against.

SCIENTIFIC / ALGEBRAIC / FRACTION CALCULATOR

- Square/cube/xth root

-Memory

- k feature

- Parenthesis

- Exponents

- Pi

- Percent Calculations: add, subtract, % against, % of increase,

- Log, In, Inverse Log, Exponential

Fractions:

- Fraction<>Decimal, Decimal<>Fraction

- Improper Fraction<>Mixed Number

- Simplification

Trigonometry:

- Sin, Cos, Tan, & Inverse

- Hyperbolic Functions

- Converts between DEG, RAD, GRAD

Statistics:

- Mean, Sum, Sum of squares, # Elements

- Standard Deviation (sample or population)

Additional Math Functions

- DMS<>DD Conversions

- Polar<>Rectangular Conversions

- nPr, cPr, x!

- Random Number Generator

- Scientific Notation

NOTE: Read the help for additional information

COMMON FEATURES

- Back key

- Portrait or landscape layout

- Copy to clipboard feature

- Dark or clear background available

- Icon widget

- MultiWindow for Samsung devices (where available)

## RealCalc Scientific Calculator

Android's #1 Scientific Calculator. A fully featured scientific calculator which looks and operates like the real thing.

Looking for fractions? Degrees/minutes/seconds? Landscape mode? You need RealCalc Plus. See elsewhere on this page for the link, or select 'Upgrade' from the RealCalc menu.

RealCalc includes the following features:

* Traditional algebraic or RPN operation

* Unit conversions

* Physical constants table

* Percentages

* Result history

* 10 memories

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

* Trig functions in degrees, radians or grads

* Scientific, engineering and fixed-point display modes

* 7-segment, dot-matrix or standard font display

* Configurable digit grouping and decimal point

* External keyboard support

* Full built-in help

* A complete lack of advertising

RealCalc Plus contains all these features, plus:

* Fraction calculations and conversion to/from decimal

* Degrees/minutes/seconds calculations and conversion

* Landscape mode

* 12-digit display

* Extended internal precision (32-digit)

* User-customizable unit conversions

* User-customizable constants

* New RPN styles (buffered-entry, XYZT rolling stack)

* Samsung multi-window support with drag & drop.

If you find RealCalc useful, please consider purchasing RealCalc Plus to support further development. Thank you.

FAQ:

* If you want data size conversions in multiples of 1024, use kibibytes, mebibytes, gibibytes, etc - see en.wikipedia.org/wiki/Kibibyte.

* If you can't find HEX, BIN or OCT modes, go to Menu > Settings and make sure that 'Radix Modes' is checked.

* If the percent key appears to give wrong answers, make sure you are pressing '=' at the end, e.g. '25 + 10 % =' will give 27.5.

* If sin/cos/tan functions don't give the answer you are expecting, make sure you are in the correct angle mode. Degrees, radians and grads are supported, indicated by DEG, RAD, GRAD in the display. Use the DRG key to change mode.

* If any of the digit keys are disabled, or the decimal point doesn't work, or you have answers with letters in, or basic arithmetic appears to be wrong, then you are in binary, octal or hexadecimal mode. Press DEC to return to decimal operation. If you don't need these modes, please make sure that 'Radix Modes' is disabled in the settings.

Please read the help for more information.

## droid48sx

czodroid

1

HP48 sx emulator.

This is a modified version of Droid48 but for HP48SX

Credit goes to Arnaud Brochard (author of droid48) and of course Eddie C. Dost - author of x48 - (See https://play.google.com/store/apps/details?id=org.ab.x48)

Source code on https://github.com/czodroid/droid48sx

Skin is not perfect but usable. I loved this calc....

Tested on galaxy s2, nexus4 5 and 7.

## Classic Calculator

This application has been designed and engineered for easy operation at any level. The natural display and enhanced features makes it versatile and the perfect choice for high school and college students alike.

* Multi-skin

* Copy clipboard

* Percentages

* Memories

* Trig functions in degrees, radians or grads

* Fixed-point display modes

* Configurable digit grouping and decimal point

* Degrees, minutes and seconds.

* Adjustable size digit

## 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

## Panecal Scientific Calculator

Appsys

1

Panecal is a scientific calculator application for technical work such as information engineering, mechanical engineering, dynamics, measurements, and construction, an essential item for engineers and science students.

Panecal scientific calculator can display and correct mathematical formulas. You can use it to check formulas, which enables you to prevent input errors and calculation mistakes. Panecal has functions such as editing and recalculating calculation formulas entered in the past, as well as the capability to use variable memory to only change specific values and do calculations.

A cursor is displayed on the screen, and you can tap the screen or push arrow keys to quickly move to the location you want to edit. Panecal allow you to swipe to scroll through formulas, as well as copying and pasting using long tapping, which makes it a strong and flexible application with an intuitive user interface.

[Main functions]

- Move the cursor by tapping and swipe to scroll through the screen

- Copy and paste

- Can select from a history list of formulas calculated in the past, edit them, and recalculate

- Can calculate binary numbers, octal numbers, decimal numbers, hexadecimal numbers up to 32 bits, and do radix conversion

- Can use M+/M- memory functions and 6 types (A-F) of variable memory

- Arithmetic operations, inverse trigonometric functions, logarithmic functions, power functions, power root functions, factorials, absolute values, and percent calculations

- Can select degrees, radians, or grads for angle units

- Can select from FloatPt (floating decimal mode), Fix (fixed decimal mode), Sci (index mode), and Eng (index is in multiples of 3) for displaying values

- Can set types of decimals and grouping separator settings

- Horizontal screen display

- Check key input with vibration and orange coloring

Panecal scientific calculator can display and correct mathematical formulas. You can use it to check formulas, which enables you to prevent input errors and calculation mistakes. Panecal has functions such as editing and recalculating calculation formulas entered in the past, as well as the capability to use variable memory to only change specific values and do calculations.

A cursor is displayed on the screen, and you can tap the screen or push arrow keys to quickly move to the location you want to edit. Panecal allow you to swipe to scroll through formulas, as well as copying and pasting using long tapping, which makes it a strong and flexible application with an intuitive user interface.

[Main functions]

- Move the cursor by tapping and swipe to scroll through the screen

- Copy and paste

- Can select from a history list of formulas calculated in the past, edit them, and recalculate

- Can calculate binary numbers, octal numbers, decimal numbers, hexadecimal numbers up to 32 bits, and do radix conversion

- Can use M+/M- memory functions and 6 types (A-F) of variable memory

- Arithmetic operations, inverse trigonometric functions, logarithmic functions, power functions, power root functions, factorials, absolute values, and percent calculations

- Can select degrees, radians, or grads for angle units

- Can select from FloatPt (floating decimal mode), Fix (fixed decimal mode), Sci (index mode), and Eng (index is in multiples of 3) for displaying values

- Can set types of decimals and grouping separator settings

- Horizontal screen display

- Check key input with vibration and orange coloring

[Disclaimer]

Please note in advance that Appsys is not responsible for any damage or lost profits caused by the use of this software, or any claims from third parties.

## Scientific Calculator

TechCalc contains 12 computing modes in one application + a handy reference section.

Modes included are:

Modes included are:

* Basic Mode,

* Scientific Mode,

* 64-bit Programmer Mode (Hex, Oct, Bin and Dec),

* Graphing (save copy of graph to sdcard),

* Matrices,

* Complex Numbers (cartesian, polar, using Euler's identity),

* Quick Formulas,

* Quick Converter,

* Time Calculator,

* Equation Solver,

* Calculus (Derivative, Definite Integral, Taylor Series & Indefinite Integral) - requires Android version 2.3 or higher

* Financial

+ the Periodic Table of Elements!

Features include:

* All Trigonometric operations (radians, degrees or gradients)

* Powers & Roots

* Logs and Antilogs

* Factorial, Modulus & Random Numbers functions

* HCF, LCM, Prime factorization

* Pol() & Rec() Functions

* Permutations (nPr) and Combinations (nCr)

* Statistics

* Fractions Mode

* A wide range of conversion categories and constants

* 20 Memory Registers in each of the calculation modes

* Detailed calculation history

* Extensive Help and Reference

* Highly customizable via the Settings

The reference section includes:

* Physical Laws

* Names in the Metric System

* Mathematical Tables

* Elementary & Linear Algebra

* Trigonometric Identities

* Differentiation & Integration Rules

* Statistics Formulas

* Vector Mathematics

* ASCII, Fractional Bits & Roman Numeral Converters

* pH, Interpolation, Body Mass Index (BMI) & Proportion Calculators

* Sigma & Pi Notation

Please email any questions that are not answered in the Help section.

This is an ad-supported app - upgrade to an ad-free version for USD 0.99 (or the equivalent in local currency) via https://play.google.com/store/apps/details?id=com.roamingsquirrel.android.calculator_plus

## Calculator Plus Free

USA TODAY named Calculator Plus among its "25 Essential Apps", calling it the "handy calculator app that's garnered great user ratings"

I'm Calculator Plus - the perfect calculator for Android. I'm easy to use and beautifully designed to do things better than your phone or handheld calculator ever did.

I love saving you time and effort. I remember everything you calculate, and let you review it anytime, making me perfect for shopping, doing homework, balancing checkbooks, or even calculating taxes. And if you quit the calculator and go do something else, it's all still here when you come back. You'll never need to type the same calculation twice again.

I'm attractive and effective and I make great use of your big, beautiful display:

- You'll never forget where you are in a calculation - I show you exactly what's happening at all times

- I remember everything, so you can take a break, then come back later and pick up where you left off

- I show your calculations in clear, elegant type that's easy to read, with commas just where they should be

- You can use backspace anytime to correct a simple mistake, instead of starting over

- Use memory to keep a running total you can actually see

- My percentage key shows exactly what it did, so you're not left confused

- Swipe memory keys aside for advanced math functions!

- NEW! Full support for Samsung Multi-Window - true multitasking for your Galaxy device.

- My intuitive, lovable design makes it simple to do everyday calculations on your phone or tablet

Let Calculator Plus and your phone or tablet finally put that handheld calculator to rest!

This is an ad supported version - our ad-free version is also available.

Calculator Plus (C) 2015 Digitalchemy, LLC

## Scientific Calculator

The app is a powerful Android scientific calculator with real look. It is one of the few Android calculators with complex number equations support. Features:

* Real equation view editor with brackets and operator priority support

* Component or polar complex entry/view mode

* Equation and result history

* 7 easy to use memories

* Large universal/physical/mathematical/chemical constant table

* Degrees, radians and grads mode for trigonometric functions

* Fixed, scientific and engineering view mode

* Easy to use with real look

* Advertisement free!

Would you like to have multiline equation editor with equation syntax hightiting, actual bracket highlighting and trigonometric functions of complex argument support? Upgrade to PowerCalc Pro.

* Multiline equation editor

* Equation syntax highliting

* Actual bracket highliting

* Trigonometric functions with complex argument support

Stay tuned! We are preparing new functionalities:

* Unit conversions

* Radix modes

* Help

* Real equation view editor with brackets and operator priority support

* Component or polar complex entry/view mode

* Equation and result history

* 7 easy to use memories

* Large universal/physical/mathematical/chemical constant table

* Degrees, radians and grads mode for trigonometric functions

* Fixed, scientific and engineering view mode

* Easy to use with real look

* Advertisement free!

Would you like to have multiline equation editor with equation syntax hightiting, actual bracket highlighting and trigonometric functions of complex argument support? Upgrade to PowerCalc Pro.

* Multiline equation editor

* Equation syntax highliting

* Actual bracket highliting

* Trigonometric functions with complex argument support

Stay tuned! We are preparing new functionalities:

* Unit conversions

* Radix modes

* Help

## Graphing Calculator by Mathlab

If you're looking for a graphing calculator app that works smoothly and seamlessly, you've found it! Graphing Calculator by Mathlab is a scientific graphing calculator integrated with algebra and is an indispensable mathematical tool for students in elementary school to those in college or graduate school, or just anyone who needs more than what a basic calculator offers. It is designed to replace bulky and costly handheld graphing calculators and works on virtually any Android phone or tablet.

Furthermore, Graphing Calculator by Mathlab displays calculations as it performs them on the high-quality display of the Android device, making it easier for the user to understand the calculations and see them clearly. This app has two great strengths. First, it acts as a fine scientific calculator, but, more than that, it displays the intermediate steps of the calculations as you type. It allows the students to both watch and learn how the calculations are made and how to find the final answer. Second, the graphing ability is absolutely stunning! Not only does the calculator beautifully display the graphs, but it automatically generates the x- and y- values and displays them as well.

Free version requires internet connection and contains ads! Upgrade to PRO!

Help site with instructions and examples: http://help.mathlab.us

If you have a question, send email to calc@mathlab.us

SCIENTIFIC CALCULATOR

* Arithmetic expressions +,-,*,/,÷

* Square root, cube and higher roots (hold ‘√’ key)

* Exponent, logarithms (ln, log)

* Trigonometric functions sin π/2, cos 30°, ...

* Hyperbolic functions sinh, cosh, tanh, ... (hold "e" key to switch)

* Inverse functions (hold direct function key)

* Complex numbers, all functions support complex arguments

* Derivatives sin x' = cos x, ... (hold x^n key)

* Scientific notation (enable in menu)

* Percent mode

* Save/load history

GRAPHING CALCULATOR

* Multiple functions graphing

* Implicit functions up to 2nd degree (ellipse 2x^2+3y^2=1, etc.)

* Polar graphs (r=cos2θ)

* Parametric functions, enter each on new line (x=cos t, y=sin t)

* Function roots and critical points on a graph. Select the checkbox on the left from the function to show their coordinates on the graph, click the graph-button on the upper menu to display their coordinates as a list.

* Graph intersections (x^2=x+1)

* Tracing function values and slopes

* Scrollable and resizable graphs

* Pinch to zoom

* Fullscreen graphs in landscape orientation

* Function tables

* Save graphs as images

* Save tables as csv

FRACTION CALCULATOR

* Simple and complex fractions 1/2 + 1/3 = 5/6

* Mixed numbers, use space to enter values 3 1/2

ALGEBRA CALCULATOR

* Linear equations x+1=2 -> x=1

* Quadratic equations x^2-1=0 -> x=-1,1

* Approximate roots of higher polynomials

* Systems of linear equations, write one equation per line, x1+x2=1, x1-x2=2

* Polynomial long division

* Polynomial expansion, factoring

MATRIX CALCULATOR

* Matrix and vector operations

* Dot product (hold *), cross product

* Determinant, inverse, norm, transpose, trace

LIBRARY

* User defined constants and functions (PRO)

* Save/load expressions

## FX-603P programable calculator

FX-603P Simulator is a very precise simulation of the classic FX-603P programmable calculator and all it's accessories. This simulation is not a toy but but a full features simulations of almost functionality of the original calculator and it can be used as a full featured and fully programmable scientific calculator.

Used as a calculator the FX-603P simulator will exceed most other calculator available. The FX-603P simulator supports all arithmetic, trigonometric, logarithmic, hyperbolic, statistical functions and all alphanumeric display options of the original calculator.

And last not least the FX-603P simulator is fully programmable. You can write up to 20 programs, using 110 registers.

With the build in FA-6 cassette interface simulation you can save and load programs and data to your thump drive for later use. Or printout results with the FP-10 thermal printer simulation and then copy / paste them to other applications.

Do visit our FX-603P website or blog where you can download the original Manual of the Calculator. Remember that the Market-Comments have no answer function and I can't help you if you post there.

SUPPORTED ANDROID FUNCTIONS:

• Calculation results can be copies to the clipboard.

• Can be installed on the SD-Card.

• Participates in Androids build in backup and restore.

• Tablet compatible.

• Extra Printer for Tablets.

BASIC FEATURES:

• Specification:Arithmetic operations (addition, subtraction, multiplication and division, raising to power and root – all judging the priority of operations) negative umbers, exponent, 33 parentheses at 11 levels and constant operations.

• Scientific Functions: Trigonometric and inverse trigonometric functions (with angle in degrees, radians or gradients), hyperbolic and inverse hyperbolic functions, logarithmic and exponential functions. inverse. Factorial, square root, square, decimal ⇔ Hour, Minute, Second conversion, coordinate transformation, absolute value, removing integer part, removing faction part, percentage, random numbers, π.

• Statistical functions Standard deviation (2 kinds), mean, sum, square sum, number of data.

• Memory: 5 key independent memory 110 register (non-volatile).

• Range of number: ± 1 × 10⁻⁹⁹ to ± 9.999999999 × 10⁹⁹ and 0, internal operations use 18 digits mantissa.

• Decimal Point Full decimal floating point arithmetic with underflow (possible display of engineering decimals).

• Calculation with fractions: simple and mixed fractions

• Base-N (Binary, Octal, Decimal, Hexadecimal)calculations: inverse, bitwise and, bitwise or, bitwise exclusive or

PROGRAMMING FEATURES:

• Number of Steps: 999 steps (non-volatile)

• Jumps: Unconditional jump (GOTO), up to 10 pairs, condition jump (x=0, x≥0, x=F, x≥F), count jump (ISZ, DSZ), subroutine (GSP) up to 9 subroutines, up to 9 depths.

• Number of programs storable: Up to 20 (P0 to P19)

• Checking and Editing Functions Check, debug, deletion addition, etc.

• Indirect addressing for M-register, destination of jump, calling subroutines.

• Miscellaneous functions: Manual Jump (GOTO), temporary suspension of execution (PAUSE), command code and step number displayed during check, simulated FA-6 adaptor, simulatord FP-40 printer.

MISSING FEATURES:

Currently VER, PEEK, POKE are not implemented.

PERMISSIONS:

• WRITE_EXTERNAL_STORAGE: Used to save and load program state. Only the directory set in the preferences is accessed.

## Kal Scientific calculator

It is a very complete scientific calculator, contains most mathematical functions with the ability to perform graphics functions. It includes a library with one hundred (100) formulas of mathematics and physics ready to use, which generates a result after entering the value of its variables, it also allows to easily extend the library with your own formulas or functions, in general is very easy to use like a real calculator, includes a display for writing operations without character limit, allows you to use parentheses and respects the hierarchy of expressions, the result is displayed on the second line of the display with the ability to update or correct any character when there is an error in the expression.

Scientific calculator Features:

• Allows make function graphs

• Library formulas

• Typical operations (add, subtract, multiply, divide)

• Exponential functions and root (Nth power, nth root, squaring, square root, cube root)

• Logarithmic functions (log10, 1n, powers of 10, exp)

• Trigonometric functions (sin, cos, tan, including inverse and hyperbolic)

• Three angle modes (DEG, RAD, GRA)

• Random number generator

• Permutations (nPr) and combinations (nCr)

• Absolute value, factorial

• Allows numbers in scientific notation

• Includes major scientific constants

• Basic Operations and converting number systems (decimal, hexadecimal, octal, binary)

• Set number of decimal and thousands separator

• History of past operations and results

• Allows you to store in memory different results

• Help Manual

The following features are only available in the professional version (Kal pro).

• Expand the library with your own formulas

• Statistical Mode.

• Standard Deviation.

• Arithmetic mean.

• Sum of values.

• It does not include advertising.

## Fraction Calculator Plus Free

I'm Fraction Calculator Plus and I'm the best and easiest way to deal with everyday fraction problems. Whether you're checking homework, preparing recipes, or working on craft or even construction projects, I can help:

- Wish you could find the time to check your kids' math homework? Now checking fraction math takes just seconds.

- Need to adjust recipe quantities for a larger guest list? Let me adjust your cup and teaspoon quantities.

- Working on a craft or home project in inches? Stop double-or-triple calculating on paper - let me do it once, accurately.

I'm attractive and effective and I make great use of either a phone or tablet display:

- I show your calculations in crisp, clear, elegant type that you can read at-a-glance from a distance.

- My innovative triple keypad display lets you type fast! (entering three and three quarters takes just 3 taps!).

- Every fraction result gets automatically reduced to its simplest form to make your job easy.

- Every result is also shown in decimal to make conversion a breeze.

- It couldn't be easier to add, subtract, multiply, and divide fractions.

Let Fraction Calculator Plus turn your phone or tablet into an everyday helping hand.

This is an ad supported version - our ad-free version is also available.

Fraction Calculator Plus (C) 2015 Digitalchemy, LLC

## Mathematics

daboApps

1

NOTE: use the SWIPE-TO-DELETE gesture to delete functions, equations, variables

- NEW: statistics (gaussian test, t test, binominal and normal distribution, standard deviation, average, sum, median)

- formula calculation with variables, sums, products and sequences

- solve equations (linear, quadratic, cubic, transpose)

- plot functions, derivate, integrate, calculate roots and extremas (polynomial, rational, exponential, etc)

- calculate tangent, asymptote, interception

- reconstruction: calculate f(x) by given roots, points or extremas

- f(x,y) plot in 3D

- factoring (Bézout's identity, Euler's totient function, least common multiple, greatest common divisor)

- modulo calculation with big integer and fractions

- differential and integral calculus

- curve sketching, limes, minima, maxima

- linear algebra, vectors, matrices

- unit conversion

- number systems, binary/oct/decimal/hex calculator

- complex number calculation

Supported languages:

English, German, Francais, Espanol, Italian, Portuguese

Mathematics is a powerful calculation software for your android smartphone.

FEATURES

Calculate any formula you want and show them in a 2d or 3d plot. The natural display shows fractions, roots and exponents as you would expect it from mathematics.

In a few seconds you derivate or integrate your desired function, calculate the zero points of your function und show them in the function plot. See all maxima, minima or inflection points in one view.

The easy way of use allows you to solve linear equations in just a moment. Or transform your mathematical, physical or chemical equation to any unknown variable.

You often needs to calculate with binary, octal or hexadecimal number systems? No problem! You can mix them together in one calculation even by using decimal digits. But that's not enough! You can also calculate with any other number system with base 2 to 18.

From time to time you may need to convert units to another one, like Celsius to Fahrenheit, miles to kilometre, inches to foot and so on.

You will also be able to calculate with vectors, matrices and determinants.

All this features are combined in this app and will make your mathematical life a lot easier.