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  • Wolfram Alpha

  • Wolfram Alpha is a "Computational Knowledge Engine" - different from a search engine, it answers factual queries directly by computing the answer from structured data, rather than providing a list of documents or web pages that might contain the answer.

    tags: built-in-search-engine computation knowledge-engine search-engine
  • SpeedCrunch

  • SpeedCrunch is a free, fast, high precision open source algebraic calculator with an intuitive interface and a extensive list of features, including: Unlimited Variables, Syntax Highlighting, Functions, with 'Automagic' Completion, 50 Decimal Precision, Input History and more...

    tags: Portable algebraic-calculation calculator live-preview mathematics
  • Qalculate!

  • Qalculate! is a multi-purpose desktop calculator for GNU/Linux and Windows. It is small and simple to use but with much power and versatility underneath. Features include customizable functions, units, arbitrary precision, plotting, and a user-friendly interface (KDE or GTK+).

    tags: algebra calculator currency equation-solving exchange-rates
  • RealCalc Scientific Calculator

  • RealCalc Scientific CalculatorAndroid'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* Result history* Unit conversions* Physical constants table* Percentages* 10 memories* Binary, octal, and hexadecimal* Trig functions in degrees, radians or grads* Scientific, engineering and fixed-point display modes* Configurable digit grouping and decimal point* Full built-in help* A complete lack of advertisingRealCalc Plus contains all these features, plus:* Fraction calculations and conversion to/from decimal* Degrees/minutes/seconds calculations and conversion* Landscape mode* User-customizable unit conversions* User-customizable constantsIf 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 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 'Enable Radix Modes' is disabled in the settings.Please read the help for more information. »

    tags: calculator mathematics scientific-calculator unit-converter
  • Soulver

  • Maths on a Mac as it should be. Soulver is a new kind of calculator application which uses a simple yet powerful word-processor style interface instead of the traditional "button" approach to doing math.

    tags: calculator mathematics natural-language-processing
  • Windows Calculator

  • Windows Calculator, commonly known as Calculator from the application's title bar, is a calculation application included in all versions of the Microsoft Windows operating system. It can be activated by the command "calc" on most Windows systems.

    tags: bundled calculator windows-built-in
  • fxSolver

  • Online math solver, equation library, graphing calculator and science/engineering problem helper.Calculate multiple equations at once, Edit existing formulas and Create new ones, Compute large numbers of values, Plot graphs, Link your results, Solve full problems and Share worksheets with your friends.

    tags: built-in-editor calculator database educational engineering
  • Gnome calculator

  • Calculator for the GNOME Desktop Environment, formerly known as gcalc (and gcalctool CLI).

    tags: calculator gnome gtk vala
  • galculator

  • galculator is a GTK 2 / GTK 3 based calculator with ordinary notation/reverse Polish notation (RPN), a formula entry mode, different number bases (DEC, HEX, OCT, BIN) and different units of angular measure (DEG, RAD, GRAD). It supports quad-precision floating point and 112-bit binary arithmetic.

    tags: basic calculator gtk rpn xfce
  • Ruvenss Calculator

  • Calculator with log and printing capabilities.

    tags: calculator printing chrome-app
  • GNU Units

  • The Units program converts quantities expressed in various scales to their equivalents in other scales. The units program can handle multiplicative scale changes as well as nonlinear conversions such as Fahrenheit to Celsius or wire gauge. Units comes with an annotated, extendable database defining over two thousand units.

    tags: calculator units-converter
  • Converters360

  • The collection of unit measurement converters along with conversion factor, ratio, formula and tables

    tags: unit-converter measurement formula conversion-charts
  • Physics Formulas Calculator

  • Physics Formulas Calculator comprises a selection of 119 different calculators that will simplify calculations which have given you headaches so far. Complex calculations, such as Force, Static Friction and others listed below will be handled easily with this app. > Force> Work> Total Work> Power with Work> Power with Displacement> Power with Velocity> Kinetic Energy> Potential Energy> Centripetal (Centrifugal) Acceleration> Concave Mirror Magnification> Centripetal Force> Circular Velocity> Velocity> Average Velocity> Displacement> Kinetic Friction> Static Friction> Newton Law of Gravity> Kepler Third Law> Gravitational Acceleration> Hooke Law> Elastic Potential Energy> Newton Second Law of Motion> Impulse with Velocity> Impulse with Time> Momentum with Velocity> Momentum with Time...> And Many More »

    tags: calculator physics law energy calculations