Opamp Calculator

1

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(194)

# Description

Opamp Calculator for electronic engineers, hobbyists and students.

Feature list:

- Inverting Amplifier

- Non inverting Amplifier

- Differential Amplifier

- Inverting Summing Amplifier

- Summing Amplifier

LIKE and Share us:

Google+: http://gplus.to/androiddesignnl

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# Reviews

Helpfulness

Newest

Rating

Helpfulness

All Versions

All Versions

Latest Version

4.2

194 total

5 99

4 53

3 27

2 7

1 8

Christopher Lenon

Output voltage The output voltage is incorrect when the configuration is set up to make the output rail. The voltage would only reach the rail voltage minus 1.4 volts. So you would be looking at an output of about positive or negative 13.6 volts. Other than that, it is a decent app.

User reviews

Great tool Thank you to the developer for making an excellent program free

Review deleted

# What's New

All the action buttons are moved to a second action bar at the bottom of the screen.

# Additional information

Updated

April 4, 2015

Size

2.1M

Installs

10,000 - 50,000

Current Version

2.62

Requires Android

3.2 and up

Permissions

Report

Flag as inappropriate Offered By

android-design.nl

Developer

# Similar

## Calculator Plus

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'm big, easy to read, and 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 helping with taxes. And if you need to quit and go do something else, I'll have it all waiting for you 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:

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

- You'll never lose track of 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

- 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

- Swipe memory keys aside if you need more advanced math functions

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

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

Let Calculator Plus on your phone or tablet finally put that handheld calculator to rest.

Calculator Plus (C) 2015 Digitalchemy, LLC

## Calculator Widget

A customizable calculator widget for your homescreen.

Features Include:

★ Themes, currently 4 to choose from but suggestions are welcome for new ones.

★ Large (4x4) and small (3x3) widget sizes

★ Button to toggle between number and function keys

★ Customizable text colors

★ Edit Mode for advanced input

★ and more

-More Information-

There is an F.A.Q. at the bottom of the settings screen that comes up when placing a widget. If you have a question that is not covered there, use the Contact Support button at the bottom of the F.A.Q. to contact me.

-Edit Mode-

This widget can handle more types of input than there is room to put buttons for. To overcome this, you can tap on the display to go into Edit Mode. From here you can copy/paste text, use your hardware or software keyboard, and input functions that are not included in the widget buttons.

For example, the widget contains a button for tangent but not for arctangent. To use arctangent, you can tap on the display and use your keyboard to type "atan". You can then continue to type in edit mode or click done to return to the widget and finish typing there.

## PICmicro Database

Iero

1

PICmicro database allow you to check the characteristics of all the PIC and dsPIC microcontrollers produced by Microchip.

You can search for your favorite microcontroller, reading the features, applying filters, and many new features will be introduced in future versions...

The application integrates seamlessly with the program ElectroDroid which can be downloaded for free from the Android Market. Get ElectroDroid "Donate" to remove ads.

PIC® Microcontrollers (MCUs) and dsPIC® Digital Signal Controllers (DSCs) are registered trademark of Microchip Technology Inc. This application is not related or affiliated in any way with Microchip Technology Inc.

## Handy Construction Calculators

Android's Most Trusted Construction Calculator

70+ Professional Grade, Premium Tools

Full US or METRIC modes - Inputs and Outputs

70+ Professional Grade, Premium Tools

Full US or METRIC modes - Inputs and Outputs

Google Play Featured - DIY App

Featured by AT&T, Vodafone

15,000+ customers, Top 100 Productivity App

"Best in Class" reviews -

The Best Android Construction Mobile Apps - getapp.com

3 Killer Android Home Improvement Apps - appshappens.com

HammerTime - poptechjam.com

Precision Inputs and Outputs

-US (Feet Inches Fraction)

-METRIC (Meter Millimeter)

What makes us better?

*US or METRIC modes - one simple setting lets you switch between modes with localized materials, size choices, inputs, outputs and rounding

*Configurable US inch fraction output precision (1/32, 1/16, 1/8, 1/4)

*Easy to use

*Flexible inputs/outputs - advanced options, no need for mental math

*Experience - Since 2009 built with the input of hundreds of professionals

*Professional grade calculator - for the Pro, Contractor, Builder, Estimator, Handyman, DIY, Home Improvement or Carpenter

*Diagrams help master the inputs and outputs - no guesswork

*Built-in results sharing - text, email, copy/paste and more

*Clean and easy to use - no ads, crazy designs or other annoyances

*Consistently updated and supported

*We appreciate our customers. Have an idea or special need? Send us a note anytime!

Satisfaction Guaranteed!

Below is a list of our 70+ construction calculators along with a few highlights to show the advanced features, inputs and outputs that we think make us the best for your construction projects.

= ROOFING

* Attic Ventilation - Ventilation, Intake & Exhaust

* Advanced Rafters - Overhang, Ridge, Bird's Mouth, Common

* Simple Rafters

* Roofing Calculator - Gables, Drip Edge, Ridge Caps, Bundles, Underlayment

* Sheeting

= FRAMING

* Balusters - Rake Angle, Centers, Spacing, Running Measurements

* Board Feet

* Floor Joists - OC Spacing, Running Measurements

* Wall Framing Calculator - Stud spacing, Studs & Plates, Advanced Algorithm

* Insulation - Batts & Blown

* Siding - Gables

* Squaring

* Stair Calculator - Constrain Run, Adjust Riser Results Realtime, Running Stringer Points

= WALL, FLOOR & CEILING

* Carpet & Vinyl Flooring

* Tongue & Groove Flooring

* Crown Molding

* Deck Boards - Diagonal & 90 Degree Layouts

* Demolition Waste - Building Type

* Drop Ceiling - Even Border Construction, All Materials

* Drywall Calculator - Room Dimension or Area, Ceiling, All Materials

* Finish Areas - Walls, Floor, Ceiling

* Paint - # Coats, Wall Type

* Tile Calculator - Field and Border, Diagonal or 90 Degree Layouts

= ELECTRICAL CALCULATOR

* Amps/Watts/Volts Solver

* Amps Required for Circuit

= FOUNDATION

* Backfill - Volume & Weight and Slope

* Excavation and Backfill - Specific excavated (with swell) and backfill (with compaction) material selection. Includes calculators specific to Basements, Footings and Trenches.

* Grade - Run/Drop or Slope

* Rebar Calculator - Beams & Columns with variable sizing and ties, Continuous footings, Weight.

= PAVING & CONCRETE

* Round/Rectangle Concrete Calculator - Total Volume, Premix and Portland Options, Rebar

* Post Holes - Per Column & Total Calculations

* Asphalt Calculator - Variable Base Weight

* Paving Calculator - Variable Base, Subbase, Compaction

* Wire Mesh

= MASONRY

* Brick & Block Wall Calculator - Bricks, Courses, w/wo Mortar

= AREA, VOLUME & ANGLE

* Acreage

* Arc

* Arc Radius

* Cone

* Circle

* Cube

* Cylinder

* Pyramid

* Rectangle

* Rise/Run/Angle

* Sphere

* Trapezoid

* Triangle

= MEASUREMENT

* Tape Measure Feet Inches Calculator

* GPS Measure (experimental) - Measure one point to another

* Drill Bit & Pilot Hole Conversion

= LANDSCAPING

* Aggregate Calculator - Rectangle/Round - Variable Materials & Densities

* Drainage - Rational Equation

= BUSINESS

* Sq/Linear Ft Construction Cost Estimator

* Discount

* Margin & Gross Profit - Customer Price, Markup Profit, Project Overhead, Company Overhead

* Overtime - Regular, Overtime & Gross Pay

* Sales Tax

* Task Time

* Travel Time

## palmDraft(lite) ElectronicsCAD

Electronic schematic drawing application for Android.

* Please note this is the lite version of palmDraft. If you like it and would like to support further development you can purchase the full version from the Google Play Market.

The full version has these additional features:

* Work with larger schematics (1080 x 720 and 1920 x 1080).

* Export blocks.

* Use of custom symbols.

* Export schematics to camera roll.

* Share schematics (gmail, etc.)

* More library symbols.

Originally designed for palm(tm) OS PDAs back in 2002, palmDraft is now available for the Android platform so you can easily design your own professional-looking electronic schematic diagrams on your Android tablet or phone.

This is a bitmap-based CAD, featuring a high definition, flick-panning, pinch-zoom-able working canvas optimized for finger and pen drawing. It's as easy to manipulate as a sheet of paper. The schematics file format is standard .PNG bitmap file format which can be easily exported and shared for printing.

HARDWARE REQUIREMENTS:

Designed for high-density screen devices, tablet or large screen device recommended for best experience.

* For older devices with low screen densities (which have lower heap size), if you get low-memory warnings, please disable dark-background in prefs screen and work with SMALL or MEDIUM sized schematics (minimum 32MB of Heap memory.)

Basic Features:

* Schematics in SMALL:720x480, MEDIUM:1080x720 and LARGE:1920x1080 sizes

(Lite version saves only in 720x480)

* Free pinch-zooming and panning of the canvas on all editing modes.

* Grid snapping for easy and accurate finger operation.

* Schematics are saved and edited in standard .PNG format.

* Copy, delete, move, flip and rotate blocks, text and objects.

* Block Export and Import (full version only).

* Built-in basic electronic, electric, network, analog and digital symbols.

* Import custom made symbols and I.C.s (Full version only).

* Landscape and portrait modes.

* Working canvas available in dark or light theme (Prefs).

If you experience problems with the application please make sure that the "Don't keep activities" setting in the "Settings-Developer options" of your phone settings is unchecked (disabled).

Please contact me by email for support, cannot help through GooglePlay reviews!

## AutoCAD 360

Autodesk® AutoCAD 360—formerly AutoCAD WS—is the official AutoCAD® mobile app.

AutoCAD 360 is a free*, easy-to-use drawing and drafting mobile app that allows you to view, edit, and share AutoCAD drawings—anytime, anywhere. Simplify site visits and fieldwork with powerful design review and markup tools—available online and offline. Seamlessly share drawings with others across desktop, web, and mobile devices. Easily access drawings from web browsers using the free companion AutoCAD 360 web app. AutoCAD 360 Pro subscription plans further expand the functionality of the app, bringing additional capabilities to the field.

View

• Open 2D and 3D DWG drawings uploaded to your free* AutoCAD 360 online account

• Work offline, then easily upload changes when you are back online

• Upload and open files directly from email on your device

• See all aspects of your DWG file, including external references, layers, and image underlays

• Use multi-touch zoom and pan to easily navigate large drawings

• Use your device’s GPS to orient yourself within a drawing

Edit

• Draw and edit shapes with accuracy using Snap

• Select, move, rotate, and scale objects

• Add and edit text annotations directly on your drawing; no need for paper mark-ups

• Validate distance measurements in the drawing while you are onsite

• Save edits to your AutoCAD 360 online workspace, so your drawings stay up to date

Share

• Share your designs with others directly from the mobile app

• Add comments and images and invite responses using the Design Feed

• Print remotely from your mobile device using HP’s ePrint & Share service

• Plot your designs to PDF or DWF and share them via email

AutoCAD 360 Pro Subscription Plans

AutoCAD 360 is free* to download and use. AutoCAD 360 Pro subscription plans allow you to get much more out of the app, enabling:

• New drawing creation

• Larger file size support

• Connectivity to third-party storage, including Dropbox, Box, and more

• Advanced layer management

• Properties and attributes

• Block libraries

• Drawing coordinates

• Priority support

• Increased storage space

• New tools and much more

AutoCAD 360 Pro subscription plans are available in the following options:

• AutoCAD 360 Pro monthly for $4.99

• AutoCAD 360 Pro annually for $49.99 (save $9.89 vs. monthly membership)

• AutoCAD 360 Pro Plus annually for $99.99

Subscriptions will be charged to your credit card through your Google Play account. Your subscription will automatically renew unless cancelled at least 24-hours before the end of the current period. You will not be able to cancel a subscription during the active period. You can manage your subscriptions in your Account Settings after purchase.

* Free products and services are subject to the Autodesk, Inc. terms of use that accompany them.

Terms of use: http://usa.autodesk.com/adsk/servlet/item?siteID=123112&id=21310328

Privacy policy: http://usa.autodesk.com/privacy/

## 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.

## Calculator

Appsys

1

A simple calculator, the display of which indicates expressions and gives easy operation for editing.

The calculator PanecalST includes features below:

*Four arithmetic operations, root, percentages, and tax calculations

*Calculations with parentheses

*Memory, M+, M-, MR, MC

*Scroll up/down lines

*Easy editing by using a cursor operation

*Cut, copy, and paste

*Expressions history and answer history

*Configurable grouping separator and decimal point

Four arithmetic operations:

1 + 2 - 3 × 4 ÷ 5 = 0.6

Root:

√( 2 × 2 ) = 2

Percentages:

500 + 20% = 600

500 - 20% = 400

500 × 20% = 100

100 ÷ 500% = 20

Tax calculation:

500 Tax+= 525

525 Tax-= 500

Parentheses:

( 1 + 2 ) × ( 3 + 4 ) = 21

( 1 + 2 ) ( 3 + 4 ) ( 5 + 6 ) = 231

Grouping separator and decimal point:

123,456,789.1 + 0.02 = 123,456,789.12

123.456.789,1 + 0,02 = 123.456.789,12

(Depends on setting)

[Disclaimer]

APPSYS does not accept responsibility for any loss which may arise from reliance on the software or materials published on this site.

## 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)

## Pretty Calculator

Let's make math fun and stylish! Add, subtract, divide, and multiply with this sassy calculator app!

Combining basic calculator functions and colorful design, solving math equations will never be boring!

Choose from four different themes: floral, sparkly jewels, animal prints, and gradient red. Change from

one design to another by swiping the screen in any direction!

Who thought math could be this fashionable?

Features:

♥ Perfect for addition, subtraction, multiplication, and division

♥ Simple layout and chic designs

♥ Swipe function to change themes

♥ Four available themes: Animal Prints, Floral, Gradient Red and Sparkly Jewels

♥ Includes basic calculator functions like percent, memory buttons, and negative/positive button

## Calculator - Simple & Stylish

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]

Constant calculations follow the Casio-style.

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.

* Calculator is free, however ads can be disabled by purchasing the Hide Ads Plugin.

[Main Functions]

- 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)

Made in Japan.

© woodsmall inc.

## Pipe Fitter Calculator

Calculate Offsets, Rolling Offsets, Advanced Rolling Offsets, Offset with 90/45 Fittings, Flange 2-Hole Fitup, Custom Fittings and more.

Generates in seconds:

Complete app design with "New" portrait layout

Pipe Offset - 8 options in 1

Rolling Offset - 9 options in 1

Reducing Tee Offset - 8 Options in 1

Back 2 Back Odd Angle Fitting Calculation

90 to Odd Angle Fitting Calculation

Tech Data for:

All Fitting Sizes Imperial, Metric, DIN

2-Hole Flange Alignment

Back 2 Back Fitting Data

Thank you all for your Support and your feedback is absolutely awesome. And always appreciated.

I tweak these apps to be as simple and intuitive as possible. Everyone can message me at easypipefitter@gmail.com with any question regarding all the pipe tools available if you would like assistance in seeing how powerful these tools can be. And I will answer you very quickly, in most cases within a few minutes of you sending a message.

Like us on Facebook

http://www.facebook.com/PipeFitterCalculatorApp

"Available for the Android and Iphone"

Pocket Pipe Organizer will run all of your pipe apps from one interface. CLICK LINK to Download

http://play.google.com/store/apps/details?id=pocket.pipe.organizer

- Input Feet/Inches/Fraction

- Input Centimeters/Millimeters

- Convert Imperial to Metric

- Convert Metric to Imperial

- Input Root Gap

- Calculate "long radius", "short radius" and "3 Radius" fittings

- Determines Cut Length of Pipe to build spool piece

- Generates Values to cut any angle fitting out of a 90

- Generates Pipe Length and True Cut Length of Pipe

- Generates values to roll Flange in the Bench for proper two-hole fit-up in the field.

- Rolling Offsets Using 45 fittings

- Rolling Offset with Any Angle

- Rolling Offset Exiting Pipe Vertical

- Rolling Offset Exiting Pipe Left horizontal

*** Immediate Fitter Support Beyond what's in the app***

*** New to fitting Pipe use the in-app feedback screen***

Also included is prompt customer service. You have a question, a comment, an issue or even a suggestion I am readily available. This is app is designed as a tool to improve your value in the workplace. Feedback is important (see contact details below) since This apps supports almost 1000 devices... if you see something occur please contact me with the feedback screen and I will contact you. I continually update when needed so everyone can use this app. Thank you.

Other Apps:

Lateral Pipe Calculator

http://play.google.com/store/apps/details?id=com.geomitry.trigonomitry

Socket Pipe Calculator

http://play.google.com/store/apps/details?id=socket.pipe.calculator

Pipe Support Calculator

http://play.google.com/store/apps/details?id=pipe.support.calculator

Mitered Pipe Calculator

http://play.google.com/store/apps/details?id=pipe.calculator.miter

Pipe Fitter Calc (FREE)

http://play.google.com/store/apps/details?id=com.odesk.calculator

Pocket Pipe Organizer (FREE)

http://play.google.com/store/apps/details?id=pocket.pipe.organizer

Your feedback is always welcome on this app, as we are always improving its functionality. if for any reason your device has an issue on install or functionality please let us know. We will fix it. We want everyone to be able to utilize this tool at work to improve their productivity and value as a pipefitter/Fabricator.

http://www.pipefittercalculator.com/lmf/contact

Contact us either by:

Phone: 207-200-1556

Text: 207-200-1556

email:easypipefitter@gmail.com

Web: www.pipefittercalculator.com

(our webpage has a comment form. Enter your info and comments there as well as request to receive updates on existing and new products to improve your workflow)

Please note we make no claim or responsibility in the values generated and the user takes sole responsibility when using this application. Thank you.

## ASUS Calculator

An ASUS calculator with re-designed minimalism simple calculation mode and advanced engineering mode, features are:

- Tilt to switch between simple and engineering mode

- Allowed expression

- Thousand separator

- Easy editing by using a cursor operation

- Cut, copy, and paste

- History zone

- Font size auto adjustment for fitting in more digits

- Tilt to switch between simple and engineering mode

- Allowed expression

- Thousand separator

- Easy editing by using a cursor operation

- Cut, copy, and paste

- History zone

- Font size auto adjustment for fitting in more digits

## Handyman Calculator

Kalyani

1

Complete construction calculator with simple inputs. The app for construction! 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 on projects, and save calculations to a notepad.

Listed in "This Old House" magazine "The TOH Top 100: Best New Home Products 2013": http://www.thisoldhouse.com/toh/photos/0,,20753086_30049018,00.html

Bob Vila newsletter: http://www.bobvila.com/blogs/renovation-app/

http://www.bobvila.com/best-app-for-home-design-inspiration/47970-new-notable-10-digital-tools-to-help-you-diy-your-dream-home/slideshows?bv=wn#!9

Real Estate Radio: http://calltoni.com/listen-now-jakes-tech-corner-with-noah-ickowit-9-7-13/

Time Tracking tool

To-do list

Feet and Inches Calculator

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Metric units arithmetic

Feet,inches TO Metre,cm,mm Converter

Fraction Calculator

Fraction Simplification

Square Footage Calculator

Cubic Footage Calculator

Lumber, Concrete and Asphalt calculator.

Length, Area and Weight Converter.

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Concrete, Brick, Block, Mortar and Sand Calculations

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Laminate Flooring Calculator

Wall Paper Calculator

Tile Calculator

Paint Calculator

Stairs Calculator

Arc Length Calculator

Air Conditioning and Heater Calculator

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Roof Pitch Angle Chart

Rafter Length Calc

Rebar Weight Chart

Mulch and Topsoil Calculator

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Speed and Velocity Unit Converter

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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

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Power Wash Calculator

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Wrench Conversion Chart

Decimal and Fraction Converter

Diagonal calculator

Slope Calculator

Right Triangle Calculator

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Polygon Calculator

Fraction to Percentage Calculator

Angle Converter

Power Converter

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Force Units Converter

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Magnetic Flux Converter

Volume FlowRate Units Converter

Degrees, Minutes, Seconds and Decimal Degrees Conversion

BMI Calculator

Miles Per Gallon (MPG) Calculator

Kilometers Per Litres Calculator

Gas and Oil mixture Ratio Calculator

Discount Calculator

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Tip Calculator

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World Clock

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Currency Converter

Oil Drilling Calculators:

Mud Pump Output(PO)

Pressure Gradient

Pressure to Mud Weight Conv.

Specific Gravity Calc.

Equivalent Circulating Density

Maximum Allowable Mud Weight

Annular Velocity

Hydraulic Horsepower(HHP)

Formation Temperature (FT)

Buoyancy factor

Refrigerant Pressure Temperature Chart

Percent Grade to Degrees Converter

Percent Grade Calculator

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

## Construction Calculator

C-Calc is a calculator application designed by, and for construction workers or anyone else who works with measurements in feet and inches. C-Calc is a full function calculator that works as a standard calculator but more importantly allows you to work in feet, inches, fractional inches, meter, centimetres, and millimetres. Features include;

- add, subtract, multiply, divide, power, root, and more with measurements in feet, inches, and fractional inches

- reduce fractions and fractional inches to their lowest common denominator

- full memory feature including add, subtract, set, recall, and clear

- split screen shows decimal value, feet/inch value, memory, and settings all at once in large easy to read fonts

- calculate square and cubic footage easily

- full instructions and video tutorial available at www.snappyappz.com

# More from developer

## RF & Microwave Toolbox lite

High frequency electronics toolbox for Microwave engineers, RF professionals, EMC technicians, radio-amateur,students, astronomer and electronic hobbyists.

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This lite version includes the following tools:

1) PI and T attenuator

2) Reflectometer (VSWR, Return loss)

3) Mismatch error limits (VSWR, Return loss)

4) Parallel LCR impedance/resonance

5) capacitor impedance

6) lowpass filter

7) Capacitor plate calculator

8) Power and Voltage Converter

9) Coupler directivity calculator.

Tools in full version includes;

1.Noise floor (Kelvin,dBm)

2.Amplifier cascade (NF, Gain, P1db, OIP2, OIP3)

3.Radar equation (2-way path loss)

4.Radio equation (1-way path loss)

5.Power and voltage converter (W,dBm,V,dBµV)

6.Field intensity and power density converter (W/m2, V/m, A/m, Tesla, Gauss,dBm, W)

7.Mismatch error limits (VSWR, Return loss)

8.Reflectometer (VSWR, Return loss)

9.Mitered Bend

10.Divider and Couplers (Wilkinson, Rat race, Branchline , microstrip and lumped)

11.Balanced and und balanced PI and T attenuator

12.Skin depth (DC and AC resistance)

13.PCB Trace calculator (impedance/dimensions)

- Microstrip

- Stripline

- Coplanar waveguide

- Coupled microstrip

- Coupled stripline

14.Image rejection (amplitude and phase imbalance)

15.Mixer harmonics (up and down convertion)

16.Helical antenna

17.Peak to RMS (peak, RMS, average, CF)

18.Air Core Inductor Inductance

19.Parallel plate Capacitor

20.PI and T attenuator

21.Ohm's Law

22.Parallel LCR impedance/resonance

23.Series LCR impedance/resonance

24.Inductor impedance

25.Capacitance impedance

26.Antenna temperature (Kelvin)

27.Radar Cross Section (RCS) calculator (Sphere,Cylinder, flat plate, corners, dBsm)

28.Noise Figure Y-Factor Methode

29.EMC (EIRP, ERP, dBµV/m)

30.Noise figure converter (dB, linear, Kelvin)

31.Frequency Band Designations (IEEE Radar band, Military Radar band, Radio band, Satellite, Wavefuide band)

32.Resistor color code (reverse lookup, 3 to 6 band)

33.Filter Design (Butterworth, Chebyshev, prototype):

- Low pass

- High pass filter

- Band pass

- Band stop filter

34.µ-Filter Design (microstrip, stripline):

- Interchange of Circuits

- Kuroda's Identities

- Series and Shunt Circuit lines

- Coupled line Circuits

- Stepped Impedance

35) PCB Trace Width and Clearance Calculator

36) Series and Parallel component (R, L and C) calculations.

37) Reverse Series and Parallel resistor calculations.

38) Inductor Color Code Calculator.

39) Capacitor Charge Calculator.

40) Led Resistor Calculator.

41) Voltage Divider Calculator.

42) Thin Film Resistor Calculator (Trim and non Trim)

43) Opamp Calculator

44) Lumped Balun Calculator

45) Wavelength calculator

46) L-Network Matching Calculator

47) LCR Parallel - Series Conversion Calculator

48) PI & T-Network Matching Calculator

49) Coax Line Calculator

50) Twisted pair Calculator

51) Lumped-Distributed Equivalences calculator

52) Fresnel Calculator

53) Inductor Charge Calculator.

54) Heat Sink temperature calculator

55) Thermal via calculator

56) Coupler directivity calculator

57) Cavity resonance calculator

## Resistor Color Code

This is by far the fastest and most easy Resistor Color Code calculator.

Calculate resistor value by selecting the band colors.

Or Reverse:

Enter a resistor value and find the color code.

If the value is not an standard E-series value the two nearest values are shown.

* 3, 4, 5 and 6 band resistor support *

If the resistor has a standard E-series value then also the E-series (E3, E6,E12, E24, E48, E96, E192) number will be shown.

App for resistor SMD code: http://play.google.com/store/apps/details?id=mwave.resistor_smd_code

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## Resistor SMD code calculator

This Resistor SMD code calculator will decode 4 code types:

Standard 3 digit code that can include:

- R to indicate a decimal point

- M to indicate a decimal point for milliohms (Current sensing SMDs)

- "underline" to indicate that the value is in milliohms (Current sensing SMDs)

Standard 4 digit code that can include “R” to indicate a decimal point.

EIA-96 1% code with a number in the range 01 to 96, followed by a letter

2, 5, and 10% code with a letter, followed by a numbers in the range 01 to 60

## PCB Trace Calculator

RF & Microwave engineers look first at the RF & Microwave Toolbox before download.

All the tools in this app are also included in the RF & Microwave Toolbox app.

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With the following tools:

1) PCB Trace calculator (impedance/dimensions)

- Microstrip

- Stripline

- Coplanar waveguide

- Coupled microstrip

- Coupled stripline

2) PCB Trace Width and Clearance calculator

3) Heat Sink temperature calculator

4) Thermal via calculator

## Ohm's Law Calculator

Ohm's Law Calculator for electronic engineers, hobbyists and students.

Feature list:

1) Ohm's Law

2) Resistor Color Code calculator.

3 )Series and Parallel component (R, L and C) calculations.

4 )Reverse Series and Parallel resistor calculations.

Also checkout the RF & Microwave Toolbox or the Analog Toolbox.

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## Wind Turbine Estimator beta

Wind Turbine estimator.

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Calculate:

- Rated output power (kw)

- Annual Energy Output (kwh/year)

- Cost of wind power (k€/kwh)

- Annual Profit (k€)

- Return on Investment (%)

- Break even Point (Years)

- CO2 reduction (Tonnes/Year)

Input:

- Rotor size

- Wind Turbine cost (k€/kw)

- Wind turbine revenue (€/kwh)

- Turbine efficiency

- Generator efficiency

- Mechanical efficiency

- Capacity Factor (%)

- Land lease cost (%)

- Operations and Maintenance cost (%)

## SWR Calculator

Coupler Directivity Calculator is used to calculate the minimum and maximum values of Reflection Coefficient, VSWR, Return Loss and Mismatch Loss.

The Directivity Error Calculator shows the accuracy of a reflection measurement of unknown impedance. It bases its readings on the directivity of the coupler used for the measurement. It is also a convenient way to convert a reflection coefficient to an equivalent standing wave ratio (SWR), return loss, or mismatch loss.

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## Personel Alarm AD (beta)

This Personal Alarm app can be used for different situations.

Seniors can use this app to alert, in case of emergency, one or more family members.

People on the move can also use this app because the Alarm message contains also the location.

Seniors can use this app to alert, in case of emergency, one or more family members.

People on the move can also use this app because the Alarm message contains also the location.

A big advantage of this app is that there is no internet connection required.

Extra options:

Auto answer phone: Phone will auto answer phone calls from the contact persons.

Alarm shake activation: The alarm can be activated by shaking the phone.

## Black Screen Burn-in protector

This app gives you only a black screen. It is useless for normal android devices.

It works as a burn-in protector for plasma and Amoled Screens.

On some TV Sticks (mk808) you cannot dim the TV screen and the screen time out is also not working.

And if you only want to play only music (Spotify) then it could be possible that the screen will burn-in.

Tap Anywhere on the screen to exit the app.

## Yet Another Flashlight (YAF)

Wy Another Flashlight?

This is the most clean and simple Flashlight app with no advertising and no permissions other then accessing the flashlight of the camera.

With two simple buttons you can choose between using the camera's flashlight or the screen as light source.

The app is also useable when then the screen is locked.

Optional you can choose a screen color and change the screen intensity.