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


Popular series
Guide to LinuxNew to Linux? Read our Linux for Starters series. We start right at the basics and teach you everything you need to know to get started with Linux.
Free and Open Source SoftwareThe largest compilation of the best free and open source software in the universe. Each article is supplied with a legendary ratings chart helping you to make informed decisions.
ReviewsHundreds of in-depth reviews offering our unbiased and expert opinion on software. We offer helpful and impartial information.
Alternatives to Proprietary SoftwareReplace proprietary software with open source alternatives: Google, Microsoft, Apple, Adobe, IBM, Autodesk, Oracle, Atlassian, Corel, Cisco, Intuit, and SAS.
Linux Around The WorldLinux Around The World showcases events and usergroups that are relevant to Linux enthusiasts.
AudioSurveys popular streaming services from a Linux perspective: Amazon Music Unlimited, Myuzi, Spotify, Deezer, Tidal.
Saving Money with LinuxSaving Money with Linux looks at how you can reduce your energy bills running Linux.
System ToolsEssential Linux system tools focuses on small, indispensable utilities, useful for system administrators as well as regular users.
ProductivityLinux utilities to maximise your productivity. Small, indispensable tools, useful for anyone running a Linux machine.
Home ComputersHome 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. It can be a bumpy ride.
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 reveals the lighter side of Linux. Have some fun and escape from the daily drudgery.
DockerGetting Started with Docker helps you master Docker, a set of platform as a service products that delivers software in packages called containers.
Android AppsBest Free Android Apps. We showcase free Android apps that are definitely worth downloading. There's a strict eligibility criteria for inclusion in this series.
Programming BooksThese best free books accelerate your learning of every programming language. Learn a new language today!
Programming TutorialsThese free tutorials offer the perfect tonic to our 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.