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fend printfn

Use this command to install fend:
winget install --id=printfn.fend -e

Arbitrary-precision unit-aware calculator

README

fend

build codecov crates.io downloads

fend is an arbitrary-precision unit-aware calculator.

Unique features:

  • Arbitrary-precision arithmetic using rational numbers
  • Full support for complex numbers
  • D&D-style dice rolls
  • Variables
  • Binary, octal, hexadecimal and all other bases between 2 and 36
  • Keep track of units, with support for SI, US and UK customary and many historical units
  • Emacs-style CLI shortcuts
  • Trigonometric functions
  • Lambda calculus

See the manual for more information.

Web Interface

fend is available on the web at printfn.github.io/fend.

Installation

The easiest way to install fend locally is via your package manager:

Package ManagerCommand
Homebrewbrew install fend
MacPortssudo port install fend
AUR (Arch Linux)yay -S aur/fend-bin
AOSC OSoma install fend
Xbps (Void Linux)xbps-install fend
NixAdd nixpkgs.fend to your config, or install ephemerally using nix-shell -p fend.
Cargocargo install fend
Windows Package Managerwinget install fend
Chocolateychoco install fend
Scoopscoop install fend
Pkgxpkgx fend

Alternatively, you can manually download the latest stable binaries here.

Once fend is installed, run fend to start a REPL session:

$ fend
> 1 ft to cm
30.48 cm
>

Packages

Manual

You can find the fend manual here.

Examples

> 5'10" to cm
177.8 cm
> cos (pi/4) + i * (sin (pi/4))
approx. 0.7071067811 + 0.7071067811i
> 0b1001 + 3
0b1100
> 0xffff to decimal
65535
> 100 C to F
210 °F
> temperature = 30 °C
30 °C
> temperature to °F
86 °F
> roll d20
8
> roll 4d6
17

Projects using fend

These are some projects making use of fend:

Feel free to make a pull request to add your own!

License

fend is available under the MIT license. See LICENSE.md for more information.

Versions
1.5.6
1.5.5
1.4.6
1.4.5
1.4.4
1.4.3
1.4.2
1.4.1
1.4.0
1.2.0
Website
License