insect – high precision scientific calculator supporting physical units

insect is an open source high precision scientific calculator that supports physical units.

insect offers a web version that needs no installation, as well as a command line version.

The software is written in PureScript, a strongly-typed functional programming language that compiles to JavaScript.

Features include:

  • Supports an interactive style with its readline-based interface. There is a saved history that can be browsed by pressing up- and down keys. The history is also searchable via a keyboard shortcut.
  • Strict syntax.
  • Shows 6 significant digits in the result of the calculation. However, the internal numerical precision is significantly higher (30 digits).
  • Evaluate mathematical expressions:
    • Operators: addition, subtraction, multiplication, division, square, modulo, unit conversion, exponentiation, and assignment.
    • Mathematical functions: abs, acos, acosh, asin, asinh, atan, atan2, atanh, ceil, cos, cosh, exp, floor, fromCelsius, fromFahrenheit, gamma, ln, log, log10, maximum, minimum, mean, round, sin, sinh, sqrt, tan, tanh, toCelsius, and toFahrenheit.
    • High-precision numeric type with 30 significant digits that can handle very large (or small) exponents like 10^(10^10).
    • Exponential notation e.g. 6.022e23.
  • Physical units including metric and binary prefixes. All units that are accepted by SI as well as most units of the imperial and US customary systems (and many more).
  • Explicit unit conversions. All SI-accepted units support metric prefixes. In addition, binary prefixes (KiB, MiB, GiB, …) are also supported.
  • Variable assignments such as the mass of the earth, and the oscillation period of a pendulum. Predefined constants include the speed of light, Planck’s constant, electron mass, elementary charge, magnetic constant, and many more.
  • User-defined functions with multiple arguments.
  • Sums and products.
  • Unicode support.
  • Tab completion.
  • Syntax highlighting.
  • SI-compliant pretty printing.
  • Opensearch integration.
  • Arbitrary precision input.
  • Developer provides binaries for Linux (32 and 64 bit), Mac, and Windows (32 bit and 64 bit) operating systems.

Website: insect.sh
Support: Documentation, GitHub code repository
Developer: David Peter
License: MIT License

insect

Return to Calculators Home Page


Ongoing series
Linux for StartersNew to Linux? Read our Linux for Starters series.
Free and Open Source SoftwareThe largest compilation of the best free and open source software in the universe. Supplied with our legendary ratings charts.
Linux ReviewsHundreds of in-depth reviews offering our unbiased and expert opinion on software.
Alternatives to GoogleAlternatives to Google's Products and Services examines your options to migrate from the Google ecosystem with open source Linux alternatives.
MicrosoftAlternatives to Microsoft's Products and Services recommends open source Linux software.
Linux System ToolsEssential Linux system tools looks at small, indispensable utilities, useful for system administrators as well as regular users.
Linux ProductivityLinux utilities to maximise your productivity. Small, indispensable tools, useful for anyone running a Linux machine.
Home Computer EmulatorsHome computers became commonplace in the 1980s. Emulate home computers including the Commodore 64, Amiga, Atari ST, ZX81, Amstrad CPC, and ZX Spectrum.
Now and ThenNow and Then examines how promising open source software fared over the years.
Linux at HomeLinux at Home looks at a range of home activities where Linux can play its part, making the most of our time at home, keeping active and engaged.
Linux CandyLinux Candy opens up to the lighter side of Linux. Have some fun!
Best Free Android AppsBest Free Android Apps. There's a strict eligibility criteria for inclusion in this series
Programming BooksThese best free books accelerate your learning of every programming language
Programming TutorialsThese free tutorials offer the perfect tonic to the free programming books series
Stars and StripesStars and Stripes is an occasional series looking at the impact of Linux in the USA
Share this article

Share your Thoughts

This site uses Akismet to reduce spam. Learn how your comment data is processed.