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Requirements: 4.0+
Overview: A calculator with 10 computing modes in one application + a handy scientific reference facility.

A calculator with 10 computing modes in one application + a handy scientific reference facility - different modes allow: 1) basic arithmetic (both decimals and fractions), 2) scientific calculations, 3) hex, oct & bin format calculations, 4) graphing applications, 5) matrices, 6) complex numbers, 7) quick formulas (including the ability to create custom formulas), 8) quick conversions, 9) solving algebraic equations & 10) time calculations.
Please note that internet permission is needed to allow access to currency exchange rates in the conversion function
Functions include:

* General Arithmetic Functions
* Trigonometric Functions - radians, degrees & gradients - including hyperbolic option
* Power & Root Functions
* 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), Bessel Functions, Beta Function, Beta Probability Density, Binomial Distribution, Chi-Squared Distribution, Confidence Interval, Digamma Function, Error Function, Exponential Density, Fisher F Density, Gamma Function, Gamma Probability Density, Hypergeometric Distribution, Normal Distribution, Poisson Distribution, Student T-Density & Weibull Distribution
* Conversion Functions - covers all common units for distance, area, 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
* Constants - a wide range of inbuilt constants listed in 4 categories:
1) Physical & Astronomical Constants - press to include into a calculation or long press for more information on the constant and its relationship to other constants
2) Periodic Table - a full listing of the periodic table - press to input an element's atomic mass into a calculation or long press for more information on the chosen element - the app also includes a clickable, pictorial representation of the periodic table
3) Solar System - press to input a planet's orbit distance into a calculation or long press for more information on the chosen planet
4) My Constants - a set of personal constants that can be added via the History
* Convert between hex, oct, bin & dec
* AND, OR, XOR, NOT, NAND, NOR & XNOR Functions
* Left Hand & Right Hand Shift
* Plotter with a table also available together with the graph
* Complex numbers in Cartesian, Polar or Euler Identity format
* The main screen of the calculator can also be set to Fractions Mode for general arithmetic functions including use of parentheses, squares, cubes and their roots
* 20 Memory Registers in each of the calculation modes
* A complete record of each calculation is stored in the calculation history, the result of which can be used in future calculations
An extensive help facility is available which also includes some useful scientific reference sections covering names in the metric system, useful mathematical formulas and a detailed listing of physical laws containing a brief description of each law.
A default screen layout is available for each function showing all buttons on one screen or, alternatively, all the functions are also available on a range of scrollable layouts which are more suitable for small screens - output can be set to scroll either vertically (the default) or horizontally as preferred – output font size can be increased or decreased by long pressing the + or - buttons
A full range of settings allow easy customisation - move to SD for 2.2+ users
Please email any questions that are not answered in the help section or any requests for bug fixes, changes or extensions regarding the functions of the calculator - glad to help wherever possible.

WHAT'S NEW

29/01 (ver 3.8.4)
* added Luminance and Illuminance to Conversion Factors

`https://play.google.com/store/apps/details?id=com.roamingsquirrel.android.calculator_plus`

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Handyman Calculator Pro v2.4.6
Requirements: 2.3 and up
Overview: Complete construction calculator with simple inputs. Easy to use and very quick as well. Well tested by 200,000+ contractors and home owners. Give it a try!

Complete construction calculator with simple inputs. The app for construction and DIY! Reduce Waste, Save Time and Money! Well tested by half a million contractors and home owners! Top 100 productivity app. Give it a try!
Calculate materials, track time spent, and save calculations to a notepad.
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Time Tracking tool
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Carpenter calculator
Woodworking calculator
Asphalt calculator
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Framing calculator
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Concrete Calculator
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Feet,inches TO Metre,cm,mm Converter
Fraction Calculator
Fraction Simplification
Cubic Footage Calculator
Lumber,Asphalt calculator
Length, Area and Weight Converter.
Temperature Converter
Density Converter
Board Foot Calculator
Board feet and Linear feet Converter
Lumber Weight Calculator
Deck Baluster Calculator
Deck Board Calculator
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Firewood Calculator and BTU Chart
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Concrete, Brick, Block, Mortar and Sand Calculations
Excavation Calculator
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Rafter Length Calc
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Grass Seed Calculator
Sod Calculator
Blown Insulation R value Calculator
Golden Ratio(Golden mean) Calculator
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Speed and Velocity Unit Converter
Water Flow Rate Calculator.
Tank Capacity Calculator
Ohm's Law Calculator
Resistor Color Code Calculator
Resistance Conversion
Power Calculator
Amps to Watts Calculator
Capacitance, Frequency, Inductance and Resistance Calculator
Voltage Drop and divider Calculator
Wire Size Calculator
Power Wash Calculator
Sine Bar Calculator
Wrench Conversion Chart
Decimal and Fraction Converter
Diagonal calculator
Slope Calculator
Right Triangle Calculator
Rectangle Calculator
Square Calculator
Circle Calculator
Polygon Calculator
Fraction to Percentage Calculator
Angle Converter
Power Converter
Energy Converter
Torque Converter
Force Units Converter
Liquid Units Converter
Pressure Converter
Magnetic Flux Converter
Volume FlowRate Units Converter
Degrees, Minutes, Seconds and Decimal Degrees Conversion
BMI Calculator
Miles Per Gallon (MPG) and Kilometers Per Litres Calculator
Gas and Oil mixture Ratio Calculator
Discount Calculator
Date Duration Calculator
Tip Calculator
Graphing Calculator
PCB Trace Width Calculator
World Clock
Shipment Density Calculator
Currency Converter
Oil Drilling Calculators
Refrigerant Pressure Temperature Chart
Mowing Calculator
Electric Charge Converter
Fuel Consumption Converter
Enthalpy Conversion
Led Resistor Calculator including Series and Parallel
Frequency, Wavelength and Energy Converter
Milling Machine calcs
Tap and Drill Chart
Woodturners Segment Calculator
Lumens to Watts Calculator
Metal detector
What's New
Bug fixes
Release Info:

http://suprafiles.net/97ih4h35zdvm
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One Unit Converter & Currency v3.2 [Unlocked]
Requirements: 4.0+
Overview: We designed One Unit Converter with simplicity and efficiency in mind. With our app you will be able to convert units, currencies, and even metals.

You never know when you’ll need a conversion tool, but when you do, it has to be fast, straightforward and reliable.
One Unit Converter’s got you covered:
• 500+ handpicked units from categories like temperature, mass, length, area, speed, fuel, volume, pressure, energy, force, power, frequency, sound, luminance, luminous intensity, illumination, time, digital storage, radiation, and angle. Many of these units are casual, we come across them everyday. Some are more technical, used in engineering tasks.
• 150+ currencies.
• Section with precious metals like gold, silver, aluminium.
• We give you the latest currency and metal rates with minimum use of data traffic.
WHAT'S NEW
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All-in-One Calculator v1.5.9 [Pro]
Requirements: 4.2+
Overview: All-In-One Calculator is a lightweight, clean and easy to use calculator and converter pack.

Containing over 50 calculators and unit converters packed in with a scientific calculator, it's the only math app you will ever need from now on on your device.
It's a great calculator for school and homework, but not only. If you're a scholar, student, teacher. builder, handyman, contractor, etc.. and you need an all in one tool for your device, give this one a try. You will never be disappointed.
Features
• Over 50 Calculators and Unit converters
• Scientific calculator with history
• Currency converter with 160 currencies, available offline
• Supports math formulas as input
• Instant results
• Integrated search
• Favorite list for quick access
• Tablet support
Languages: English (currently looking for translators)
Complete list of all the calculators and unit converters
Algebra
• Percentage calculator
• Proportion calculator
• Average calculator - arithmetic, geometric and harmonic means
• Equation solver - linear, quadratic and equation system.
• Combinations and permutations
• Decimal to fraction
• Fraction simplifier
• Greatest common factor & Lowest common multiple calculator
• Random number generator
Geometry
• Area / perimeter calculator for square, rectangle, parallelogram, trapezoid, rhombus, triangle, pentagon, hexagon, circle, circle arc, ellipse
• Volume calculator for cube, rect. prism, square pyramid, sq. pyramid frustum, trapezoidal footing, cylinder, cone, conical frustum, sphere, spherical cap, spherical frustum, ellipsoid.
• Right triangle calculator
• Heron's formula (solve a triangle knowing the side lengths)
• Circle solver
Unit converters
• Acceleration converter
• Angle converter
• Length converter
• Energy converter
• Force converter
• Torque converter
• Area converter
• Volume converter
• Volumetric flow converter
• Weight converter
• Temperature converter
• Pressure converter
• Power converter
• Speed converter
• Mileage converter
• Time converter
• Digital storage converter
• Data transfer speed converter
• Numeric base converter
• Roman numerals converter
• Shoe size converter
Finance
• Currency converter with 161 currencies available offline
• VAT calculator
• Tip calculator
• Loan calculator
• Electricity cost calculator
• Cost of smoking calculator
Health
• Body mass index - BMI
• Daily calories burn
• Body fat percentage
Engineering
• Ohm's law calculator - voltage, current, resistance and power
• Speed/Distance/Time
• Cylinder force calculator
• Resistance calculator
• Density calculator
Miscellaneous
• Elapsed time calculator
WHAT'S NEW
Version 1.5.9
Added new number format options in settings.
Fixed some minor issues.

http://suprafiles.net/l50u44zyvwii
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Calculator - Simple & Stylish v1.9.0 [Pro]
Requirements: 4.0.3+
Overview: A simple, stylish calculator.
Supports percent calculation, constant calculation, repeat and exponential, and interest calculation. Features memory functionality and the ability to display and save formulas.

All calculation results are saved, and past formulas can be viewed at any time.
Anything entered is saved when the app quits, so the app resumes where you left off.
The widget can be used to perform the app functions on the home screen.
Percent calculations make calculating sales tax easy.
[Calculation Results]
1+2×3=9
1+2×3=7
*Can be changed through Settings.
[Percent Calculation]
500×5%25
500÷5%10000
500-5%475
500+5%525
[Constant Calculation]
After inputting the desired number, tap the desired operator twice to set it as the constant.
Ex) When you want to constantly add 100
100++
1000=1100
2000=2100
[Exponential Calculation]
5××=25
=125
=625
[Compound Interest Calculation]
Ex) When calculating the yearly maturity on 0.5% (after tax) of \$10,000 deposited yearly.
1.005××
10000=10050
=10100.25
=10150.751
This calculator does not support function operations.
Uses Sharp-style calculation formulas.
* Some use Casio-style.
[Main Functions]
- Floating widget
- Usable from the home widget
- Saves entries even when closed mid-calculation
- Press and hold the result to copy to clipboard
- Input up to 12 digits
- Usable portrait or landscape
- Tap the DEL key to delete 1 character
- Hold the DEL key to clear the entry
- Tap the C/CE key to clear the entry
- Hold the C/CE to clear everything
- Designed for tablets
- Displays history
- Saves history
- Customizable themes
- Customizable fonts
- Customizable layouts
- Customizable display
- Set the rounding of decimals
- Set the rounding place of decimals
- Vibrates when the widget is tapped
- Constant calculation (Casio-style)
WHAT'S NEW
- Bug fixes and Performance improvements

http://suprafiles.net/gk3jw2fxjckj
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• By caffeine
Handyman Calculator Pro v2.4.4
Requirements: 2.3 and up
Overview: Complete construction calculator with simple inputs. Easy to use and very quick as well. Well tested by 200,000+ contractors and home owners. Give it a try!

Complete construction calculator with simple inputs. The app for construction and DIY! Reduce Waste, Save Time and Money! Well tested by half a million contractors and home owners! Top 100 productivity app. Give it a try!
Calculate materials, track time spent, and save calculations to a notepad.
Listed in "This Old House" magazine "The TOH Top 100: Best New Home Products 2013" and Bob Vila newsletter.
Time Tracking tool
To-do list
CutList calculator
Feet and inches calculator
Square foot calculator
Construction calculator
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Contractor calculator
Carpenter calculator
Woodworking calculator
Asphalt calculator
Construction material calculators
Framing calculator
Building material calculators
Construction project calculators
Carpenters calculator
Flooring calculator
Brick calculator
Bid calculator
Project calculator
Plywood calculator
Job estimate calculator
Feet inches calculator
Imperial calculator
Angle calculator
Lumber calculator
Woodworker Calculators
Concrete Calculator
Siding calculator
Electrical calculators
Metric units arithmetic
Feet,inches TO Metre,cm,mm Converter
Fraction Calculator
Fraction Simplification
Cubic Footage Calculator
Lumber,Asphalt calculator
Length, Area and Weight Converter.
Temperature Converter
Density Converter
Board Foot Calculator
Board feet and Linear feet Converter
Lumber Weight Calculator
Deck Baluster Calculator
Deck Board Calculator
Spacing Calculator
Wall Framing Calculator
Firewood Calculator and BTU Chart
Lumber Log Volume calculator
Concrete, Brick, Block, Mortar and Sand Calculations
Excavation Calculator
Asphalt Volume calculator
Aggregate Calculator
Drywall calculator
Crown Molding Calculator
Carpet Calculator
Laminate Flooring Calculator
Wall Paper Calculator
Tile Calculator
Paint Calculator
Stairs Calculator
Arc Length Calculator
Air Conditioning and Heater Calculator
Roof Calculator
Roof Pitch Angle Chart
Rafter Length Calc
Rebar Weight Chart
Mulch and Topsoil Calculator
Patio Pavers Calculator
Brick Calculator
Plants Calculator.
Wood Fence Calculator
Grass Seed Calculator
Sod Calculator
Blown Insulation R value Calculator
Golden Ratio(Golden mean) Calculator
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Rain water Collection Calculator
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Voltage Drop and divider Calculator
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Slope Calculator
Right Triangle Calculator
Rectangle Calculator
Square Calculator
Circle Calculator
Polygon Calculator
Fraction to Percentage Calculator
Angle Converter
Power Converter
Energy Converter
Torque Converter
Force Units Converter
Liquid Units Converter
Pressure Converter
Magnetic Flux Converter
Volume FlowRate Units Converter
Degrees, Minutes, Seconds and Decimal Degrees Conversion
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Currency Converter
Oil Drilling Calculators
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Fuel Consumption Converter
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What's New
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Release Info:

http://suprafiles.net/whlborga4p8l
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Graphing Calculator - Algeo | Analyze Functions v2.5.1 [Pro]
Requirements: 4.0.3+
Overview: Use Algeo as a physics calculator, a scientific calculator, an algebra calculator, and a chemistry calculator!

Algeo is the most beautiful scientific graphing calculator available on the Play Store. It's fast and powerful and you'll never have to carry around a large physical scientific calculator anymore. The intuitive interface shows your graphing calculation as you would write it on paper rather than squeezing everything on a single line. And you don't need an internet connection unlike other graphing calculators! Useful for calculus, physics or as a chemistry calculator.
Wolfram Alpha users love using Algeo! This free app is packed with more features than a paid physics calculator. Graph fast with Algeo.
Draw functions, find intersections and show a table of values of the functions with an easy to use interface.
Use Algeo as a
• Graphing Calculator
• Physics Calculator
• Scientific Calculator
• Algebra Calculator
• Calculus Calculator
• Chemistry Calculator
As a calculus calculator
• Symbolic Differentiation
• Calculate Integrals (definite only)
• Calculate Taylor-series
• Solve Equations
• Algeo is the most advanced calculus calculator on the Google Play Store!
As a scientific calculator
• Trigonometric and Hyperbolic Functions
• Logarithm
• Result History
• Variables
• Scientific Notation
• Combinatorial functions
• Number theoretic functions (modulo, greatest common divisor)
• Use Algeo as your go-to algebra calculator!
As a graphing calculator
• Graph fast!
• Graph up to four functions
• Analyze function
• Find roots and intersections automatically
• Pinch to zoom
• Create a table of values for a function
This graphing calculator is the easiest way to analyze a function and graph fast.
Wolfram Alpha users approve! Algeo is the best scientific calculator for Wolfram Alpha users.
WHAT'S NEW
Arbitrary precision during floating point calculations
Fix bug in table listing

http://suprafiles.net/zpf8lh1nc4ff
http://cloudyfiles.com/v1huai9f4wcz

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All-in-One Calculator v1.5.8 [Pro]
Requirements: 4.2+
Overview: All-In-One Calculator is a lightweight, clean and easy to use calculator and converter pack.

Containing over 50 calculators and unit converters packed in with a scientific calculator, it's the only math app you will ever need from now on on your device.
It's a great calculator for school and homework, but not only. If you're a scholar, student, teacher. builder, handyman, contractor, etc.. and you need an all in one tool for your device, give this one a try. You will never be disappointed.
Features
• Over 50 Calculators and Unit converters
• Scientific calculator with history
• Currency converter with 160 currencies, available offline
• Supports math formulas as input
• Instant results
• Integrated search
• Favorite list for quick access
• Tablet support
Languages: English (currently looking for translators)
Complete list of all the calculators and unit converters
Algebra
• Percentage calculator
• Proportion calculator
• Average calculator - arithmetic, geometric and harmonic means
• Equation solver - linear, quadratic and equation system.
• Combinations and permutations
• Decimal to fraction
• Fraction simplifier
• Greatest common factor & Lowest common multiple calculator
• Random number generator
Geometry
• Area / perimeter calculator for square, rectangle, parallelogram, trapezoid, rhombus, triangle, pentagon, hexagon, circle, circle arc, ellipse
• Volume calculator for cube, rect. prism, square pyramid, sq. pyramid frustum, trapezoidal footing, cylinder, cone, conical frustum, sphere, spherical cap, spherical frustum, ellipsoid.
• Right triangle calculator
• Heron's formula (solve a triangle knowing the side lengths)
• Circle solver
Unit converters
• Acceleration converter
• Angle converter
• Length converter
• Energy converter
• Force converter
• Torque converter
• Area converter
• Volume converter
• Volumetric flow converter
• Weight converter
• Temperature converter
• Pressure converter
• Power converter
• Speed converter
• Mileage converter
• Time converter
• Digital storage converter
• Data transfer speed converter
• Numeric base converter
• Roman numerals converter
• Shoe size converter
Finance
• Currency converter with 161 currencies available offline
• VAT calculator
• Tip calculator
• Loan calculator
• Electricity cost calculator
• Cost of smoking calculator
Health
• Body mass index - BMI
• Daily calories burn
• Body fat percentage
Engineering
• Ohm's law calculator - voltage, current, resistance and power
• Speed/Distance/Time
• Cylinder force calculator
• Resistance calculator
• Density calculator
Miscellaneous
• Elapsed time calculator
WHAT'S NEW
Version 1.5.8
Age calculator: Find your age in years, months & days and the months & days left until your next birthday.
Elapsed time: Improved date & time input and added even more functionality.
Installed app name changed to "Calculator".
Added small design elements to the main calculator to help first time users navigate the app (eg. back button, history arrow).
Reduced app size.

http://suprafiles.net/o2mx6nz6xean
http://cloudyfiles.com/7xyy02ziiaiq

• By caffeine
One Unit Converter & Currency v3.1 [Unlocked]
Requirements: 4.0+
Overview: We designed One Unit Converter with simplicity and efficiency in mind. With our app you will be able to convert units, currencies, and even metals.

You never know when you’ll need a conversion tool, but when you do, it has to be fast, straightforward and reliable.
One Unit Converter’s got you covered:
• 500+ handpicked units from categories like temperature, mass, length, area, speed, fuel, volume, pressure, energy, force, power, frequency, sound, luminance, luminous intensity, illumination, time, digital storage, radiation, and angle. Many of these units are casual, we come across them everyday. Some are more technical, used in engineering tasks.
• 150+ currencies.
• Section with precious metals like gold, silver, aluminium.
• We give you the latest currency and metal rates with minimum use of data traffic.
WHAT'S NEW
• Currencies fix

http://suprafiles.net/qg28dprv6twb
http://cloudyfiles.com/rmwo0chljyqg

• By APK
powerOne Scientific Calculator v1.0.39
Requirements: 4.0 and up
Overview: powerOne® combines an algebraic and RPN calculator with simple, customizable, spreadsheet-like templates, giving you hundreds to choose from. Create your own and share with others.

powerOne calculators have been:
● "The créme de la créme of calculators" - AppAdvice
● "Incredibly powerful tool for calculations of all kinds." - Smokin' Apps
● "You need this calculator. It's miles better than the competition." - Robert Burns
● "…sets the benchmark for other calculators to reach." - Fred Swan
● "Not sure how I could do my job without powerOne." - Arvid Martin
● "A legend. The best calculator app I have ever seen." - Worldwide Tech
● "… powerOne shines." - Mac Observe
CALCULATE
Whether math and science, conversions, engineering, construction, finance, investing or real estate, powerOne has you covered. There are hundreds of spreadsheet-like calculator templates pre-installed or in the Library, ready right now for all kinds of what-if scenario analysis.
And for those one-off calculations use powerOne's elegant algebraic and RPN calculator. Perform calculations in either decimal, scientific, engineering, fraction or feet-inch format with functions that include powers, logs, trig and more.
CREATE
powerOne is easily customized. It includes a dynamic language to create your own calculator templates. It can be as easy as entering a formula similar to HP Solve or harness the complete capabilities of powerOne's simple scripting language. Hundreds of examples and instructions included.
SHARE
Whether colleague or client, powerOne makes it easy to share the results and created templates, too. Just choose who to send it to. The results are in the email and so is the template. Click the attached template and it will load right into powerOne.
TRUST
After 15 years and close to 20 million software calculators distributed, Infinity Softworks has earned its reputation for high quality apps. We'd love to hear from you, whether ideas, help or problems, at [email protected]
------------------------
This version of powerOne includes…
* Full-featured algebraic and RPN calculator
* Pre-installed calculator templates:
- Area Conversion
- Areas
- Energy Conversion
- Force Conversion
- Length Conversion
- Mass Conversion
- Power Conversion
- Pressure Conversion
- Probability
- Pythagorean Theorem
- Statistics, One-Variable
- Statistics, Two-Variable
- Temperature Conversion
- Velocity Conversion
- Volume Conversion
- Volumes
* Perform decimal, fraction or feet-inch math with hundreds of functions ranging from powers and trig to programmer's math and matrices
* Share results and templates by simply entering a recipient
What's New
- bug fixes

http://suprafiles.net/fmvacwqtosk9
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• By caffeine
Hydraulic CALC pro v1.70
Requirements: 5.0 and up
Overview:  am developer of Hydraulic CALC and professional engineer of water supply and sewage system.

This application was developed mainly to provide a swift access to a variety of formulas, theories and coefficients related to hydraulics for civil engineers, especially working in the field of water supply and sewage system.
Every single formula in the program was employed with meticulous care, but as errors might exist, subsequent examinations are recommended.
The accuracy of the program will be continually updated as well as the types of formulas provided.
❚ SUPPORT FORMULA LIST
▶ GENERAL
- flow section property : circular
- flow section property : rectangular
- flow section property : trapezoidal
- flow section property : triangular
- flow section property : parabolic
- hydraulic mean depth
- reynolds number : dynamic viscosity
- reynolds number : kinematic viscosity
- froude number
- continuity equation : velocity
- continuity equation : discharge
- ref : properties of water : specific weight
- ref : properties of water : density
- ref : properties of water : dynamic viscosity
- ref : properties of water : kinematic viscosity
- ref : properties of water : surface tension
- ref : properties of water : modulus of elasticity
- ref : properties of water : vapor pressure
- ref : specific gravity
- ref : roughness height
▶ OPEN CHANNEL FLOW
- manning formula
- manning formula : circular
- manning formula : rectangular
- manning formula : trapezoidal
- manning formula : triangular
- manning formula : parabolic
- ref : manning roughness coefficient
- kutter formula
- kutter formula : circular
- kutter formula : rectangular
- kutter formula : trapezoidal
- kutter formula : triangular
- kutter formula : parabolic
▶ PIPE FLOW
- hazen–williams equation
- ref : hazen–williams roughness coefficient
- darcy–weisbach equation
- darcy friction factor : laminar flow
- darcy friction factor : turbulent flow : colebrook–white equation
- darcy friction factor : turbulent flow : swamee–jain equation
- darcy friction factor : turbulent flow : alternatively
- minor loss : entrance
- minor loss : submerged discharge
- minor loss : sudden contraction
- minor loss : sudden expansion
- minor loss : gradual contraction
- minor loss : gradual expansion
- minor loss : bending
- minor loss : elbow
- minor loss : valve
▶ WEIR/ORIFICE/PUMP
- weir : rectangular : discharge
- weir : rectangular : head
- weir : triangular : discharge
- weir : triangular : head
- orifice : velocity
- pump : pressure to head
- pump : mass flow to volumetric flow
- pump : net positive suction head : pressure
- pump : power
- pump : torque
- pump : temperature rise
- pump : specific speed at BEP
▶ HYDROLOGY
- time of concentration : US FAA
- time of concentration : kinematic wave
- time of concentration : kerby
- time of concentration : kirpich
- time of concentration : izzard
- ref : runoff coefficient
- ref : manning overland flow roughness coefficient
- ref : kerby retardance coefficient
- ref : kirpich adjustment factor
E-mail : [email protected]
Those will be reflected in the following updates.
Features
What's New
Hydraulic CALC pro 1.70 New Release.
New Formula Update !!
❚ PIPE FLOW
- entry length
- darcy–weisbach equation : discharge
❚ WEIR/PUMP
- side overflow weir : discharge
- side overflow weir : head

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• By APK
Programmers Calculator Pro v8.0
Requirements: 3.0 and up
Overview: Programmer Calculator is a Beautiful,simple yet powerful application with Hex Dec and Bin numbers displayed simultaneously .

Flat UI with minimalistic design makes its appearance soothing with no visual clutter
It supports Binary Hex Decimal and octal systems
It supports all the bitwise operations required by a developer and still maintains almost zero visual clutter.
It provides option to edit Individual bits in a binary number.
It supports BYTE (8bit), WORD / SHORT (16bit), DWORD / INTEGER (32bit) and QWORD / LONG (64BIT) Signed and Unsigned numbers.
It provides Floating Point mode and fixed point mode.
It can show IEEE 754 Representation of numbers.
What's New
Added Step by step explanation of all conversions
Solved a few bugs

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• By APK
Strelok Pro v4.1.8 [Paid]
Requirements: 3.0+
Overview: 973 reticles database! Full reticles list you can see here:http://www.borisov.mobi/StrelokPro/android/reticles.html

1184 bullets database + 400 bullets with G7 ballistic coefficients
2660 cartridges database
This smart ballistic calculator can use G1, G7 and... custom drag-functions! It can use Lapua radar data!
Can calculate trajectory without using ballistic coefficient!
Powder temperature considering.
Supports imperial and metric units.
Supports density altitude.
Can calculate spin drift, gyroscopic stability factor and vertical deflection of crosswind.
Can calculate Coriolis effect.
Supports Kestrel weather meters via bluetooth, including new 5x00 family (for Android 4.3 and newer)!
Support Kestrel DROP environmental data loggers (for Android 4.3 and newer)!
Supports Weatherflow WEATHERmeter (for Android 4.3 and newer)!
Trajectory validation (truing) by speed or ballistic coefficient.
Can measure incline angle with phone camera
Can get current weather from internet
You can store you data to Dropbox or Google drive for back up and sync between devices
You can select target type from big list of targets
Field-proven accuracy since 2007
Required permissions:
1. Access to GPS - for Coriolis effect calculation and internet weather
5. Access to microphone - to communicate with Weatherflow wind meter http://weatherflow.com/windmeter/
6. Access to storage - for write app settings and rifles. cartridges data.
WHAT'S NEW
- Crosshair .223/69gr., TA33-C-400121, Trijicon
- Rimfire .22 HV, Vantage 3-9x40, Hawke
- FX-MRAD, BLACK FX1000 4-16x50SF, Nikon
- FX-MOA, BLACK FX1000 4-16x50SF, Nikon
- FX-MRAD, BLACK FX1000 6-24x50SF, Nikon
- FX-MOA, BLACK FX1000 6-24x50SF, Nikon
- MRAD, TORIC FFP 4-20x50, Tract
- MOA, TORIC FFP 4-20x50, Tract
- Multi-X, Ultra Legend HD 4.5x14x44, Bushnell
- MR, Core TX 4-16x, Sightmark
- NMH10, EVX 4-16x44, Optisan Optics
- ARC-2, 4-14x44 FFP, Primary Arms

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• By APK
Electronics Engineering Calculators PRO v1.7.6 [Paid]
Requirements: 4.2+
Overview: This app helps students and enthusiasts to build electronic circuits.

This app helps students and enthusiasts to build electronic circuits. Containing the most frequently used functions in this field and other useful information for engineering students or electrical engineers.
Buy me a coffee? Get the PRO version for a really small price and you not only get rid of the one ad banner (yes there is only one) but also helps me to buy more coffee and keep programming.
Many Thanks! Enjoy!
CALCULATORS:
# Ohm's Law
-DIRECT CURRENT
-ALTERNATING CURRENT
# Resistors:
-COLOUR CODE
-SERIES & PARALLEL
-VOLTAGE DIVIDER
-CURRENT DIVIDER
-STANDARD VALUES
# Inductors:
-COLOUR CODE
-STANDARD VALUES
-SERIES & PARALLEL
-REACTANCE (XL)
-RESONANCE
# Capacitors:
-STANDARD VALUES
-SERIES & PARALLEL
-REACTANCE (Xc)
-RESONANCE
-MARKING CODE
# RLC Impedance:
-SERIES / PARALLEL : RL, RC, LC, RLC
# Voltage regulator:
-78xx & 79xx
-LM317 & LM337
-PINOUT
# Operational Amplifier
-INVERTING
-NON INVERTING
-SUMMING INVERTING
-DIFFERENTIAL
# IC-555
-ASTABLE
-MONOSTABLE
-PINOUT
# Delta-Star Conversion
# Battery
-AVERAGE LIFE TIME
-CAPACITY
# Converters
-Number Converter (DEC, BIN, HEX, OCT)
-Temperature Converter (Celsius, Kelvin, Fahrenheit)
-Scientific Notation Converter
-Voltage Converter (Peak, Peak to Peak, RMS)
-Current Converter (Peak, Peak to Peak, RMS)
-Power Converter (db to Watts)
-HP - kW
-bit - Byte
# Wavelength
-FREQUENCY
-LENGTH
# PCB trace resistance
# Stepper Motor
# Antenna Power Density
# LED Resistor Value
# Transformers
# Zener Diode
-Voltage Divider
-Selector
-Models
PINOUTS:
RASPBERRY PI / ARDUINO / RJ-45 / RJ-11/14/25 / FIBER / USB 1.x/2.0 / USB 3.x / PDMI / SERIAL RS232 / PARALLEL PORT / FIREWIRE / ATX / EIDE / ATA / SATA / PS-2 / AT / CAR OBD-II / CAR AUDIO ISO / CAR TRAILER / DISPLAY PORT / HDMI / DVI / VESA / SCART / S-VIDEO / VGA / AUDIO / RCA / AUDIO DIN / MIDI / XLR / SD CARD / SIM CARD / LM7XXX / LM3XX / IC555 / 7 SEG DISPLAY / LCD SCREEN / LED
LISTS:
#Resistivity (Materials)
#Circuit Symbols
#Abbreviations
#dB Values
#ASCII Table
#Logic Gates
#Fuses Categories
#AWG Table
#Screen Resolutions
#IEC 60320
#Resistors Standard Values
#Capacitors Marking Code
#International System of Units
THEORY:
#Basic theory and formulas
GUIDES:
#BLOCK DIAGRAMS
#CIRCUIT DIAGRAMS
#ELECTRICITY
#SERIES AND PARALLEL
#VOLTAGE AND CURRENT
#METERS
#MULTIMETER
#OSCILLOSCOPE
#AC / DC
#ANALOG AND DIGITAL
#POWER SUPPLY
What's New
NEW CALCULATORS :
- RESISTOR COLOR CODE BY VALUE
- SMD RESISTOR BY CODE
NEW THEORY CONTENT :
- QUICK REFERENCE MATHS :
- ALGEBRA
- TRIGONOMETRY
- CALCULUS
- BOOLEAN ALGEBRA
- KARNAUGH MAP
NEW LISTS :
- SMD RESISTORS STANDARD VALUES
THANKS FOR YOUR SUGGESTIONS, BUG REPORTING AND SUPPORT :
Sergio S Paula; SOWBEK- PC; José Rodrigues; cleison santos; Frank Castro; Jacobo Contreras; Wayne Sharpe; Christian Brusch; Yury Ayann

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• By caffeine
All-in-One Calculator v1.5.7 [Pro]
Requirements: 4.2+
Overview: All-In-One Calculator is a lightweight, clean and easy to use calculator and converter pack.

Containing over 50 calculators and unit converters packed in with a scientific calculator, it's the only math app you will ever need from now on on your device.
It's a great calculator for school and homework, but not only. If you're a scholar, student, teacher. builder, handyman, contractor, etc.. and you need an all in one tool for your device, give this one a try. You will never be disappointed.
Features
• Over 50 Calculators and Unit converters
• Scientific calculator with history
• Currency converter with 160 currencies, available offline
• Supports math formulas as input
• Instant results
• Integrated search
• Favorite list for quick access
• Tablet support
Languages: English (currently looking for translators)
Complete list of all the calculators and unit converters
Algebra
• Percentage calculator
• Proportion calculator
• Average calculator - arithmetic, geometric and harmonic means
• Equation solver - linear, quadratic and equation system.
• Combinations and permutations
• Decimal to fraction
• Fraction simplifier
• Greatest common factor & Lowest common multiple calculator
• Random number generator
Geometry
• Area / perimeter calculator for square, rectangle, parallelogram, trapezoid, rhombus, triangle, pentagon, hexagon, circle, circle arc, ellipse
• Volume calculator for cube, rect. prism, square pyramid, sq. pyramid frustum, trapezoidal footing, cylinder, cone, conical frustum, sphere, spherical cap, spherical frustum, ellipsoid.
• Right triangle calculator
• Heron's formula (solve a triangle knowing the side lengths)
• Circle solver
Unit converters
• Acceleration converter
• Angle converter
• Length converter
• Energy converter
• Force converter
• Torque converter
• Area converter
• Volume converter
• Volumetric flow converter
• Weight converter
• Temperature converter
• Pressure converter
• Power converter
• Speed converter
• Mileage converter
• Time converter
• Digital storage converter
• Data transfer speed converter
• Numeric base converter
• Roman numerals converter
• Shoe size converter
Finance
• Currency converter with 161 currencies available offline
• VAT calculator
• Tip calculator
• Loan calculator
• Electricity cost calculator
• Cost of smoking calculator
Health
• Body mass index - BMI
• Daily calories burn
• Body fat percentage
Engineering
• Ohm's law calculator - voltage, current, resistance and power
• Speed/Distance/Time
• Cylinder force calculator
• Resistance calculator
• Density calculator
Miscellaneous
• Elapsed time calculator
WHAT'S NEW
Version 1.5.7
Added Prime checker. Find out if a value is a prime number by breaking it down into its prime factors.
GCF / LCM screen now allows multiple values as input (instead of just two).
Improved the Number generator, allowing for more versatility.
Removed excessive text capitalization across the app for a cleaner experience.

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• By APK
Requirements: 4.0+
Overview: A calculator with 10 computing modes in one application + a handy scientific reference facility.

A calculator with 10 computing modes in one application + a handy scientific reference facility - different modes allow: 1) basic arithmetic (both decimals and fractions), 2) scientific calculations, 3) hex, oct & bin format calculations, 4) graphing applications, 5) matrices, 6) complex numbers, 7) quick formulas (including the ability to create custom formulas), 8) quick conversions, 9) solving algebraic equations & 10) time calculations.
Please note that internet permission is needed to allow access to currency exchange rates in the conversion function
Functions include:
* General Arithmetic Functions
* Trigonometric Functions - radians, degrees & gradients - including hyperbolic option
* Power & Root Functions
* 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), Bessel Functions, Beta Function, Beta Probability Density, Binomial Distribution, Chi-Squared Distribution, Confidence Interval, Digamma Function, Error Function, Exponential Density, Fisher F Density, Gamma Function, Gamma Probability Density, Hypergeometric Distribution, Normal Distribution, Poisson Distribution, Student T-Density & Weibull Distribution
* Conversion Functions - covers all common units for distance, area, 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
* Constants - a wide range of inbuilt constants listed in 4 categories:
1) Physical & Astronomical Constants - press to include into a calculation or long press for more information on the constant and its relationship to other constants
2) Periodic Table - a full listing of the periodic table - press to input an element's atomic mass into a calculation or long press for more information on the chosen element - the app also includes a clickable, pictorial representation of the periodic table
3) Solar System - press to input a planet's orbit distance into a calculation or long press for more information on the chosen planet
4) My Constants - a set of personal constants that can be added via the History
* Convert between hex, oct, bin & dec
* AND, OR, XOR, NOT, NAND, NOR & XNOR Functions
* Left Hand & Right Hand Shift
* Plotter with a table also available together with the graph
* Complex numbers in Cartesian, Polar or Euler Identity format
* The main screen of the calculator can also be set to Fractions Mode for general arithmetic functions including use of parentheses, squares, cubes and their roots
* 20 Memory Registers in each of the calculation modes
* A complete record of each calculation is stored in the calculation history, the result of which can be used in future calculations
An extensive help facility is available which also includes some useful scientific reference sections covering names in the metric system, useful mathematical formulas and a detailed listing of physical laws containing a brief description of each law.
A default screen layout is available for each function showing all buttons on one screen or, alternatively, all the functions are also available on a range of scrollable layouts which are more suitable for small screens - output can be set to scroll either vertically (the default) or horizontally as preferred – output font size can be increased or decreased by long pressing the + or - buttons
A full range of settings allow easy customisation - move to SD for 2.2+ users
Please email any questions that are not answered in the help section or any requests for bug fixes, changes or extensions regarding the functions of the calculator - glad to help wherever possible.
WHAT'S NEW
31/03 (ver 4.1.8)
* added Feet and Inches Calculator to the Reference Section
* added "Matrix A as the variable of a polynomial" to Matrices mode
* added options cos(a,b), sin(a,b) and multiplication of a vector by a scalar value plus ability to reuse a vector calculation result in a new vector calculation (Equation Solver)
* added an option in the Settings to provide a wider choice for the digit group separator; moved Indian Number Format to this list
See Change Log for full list of changes