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beek

build

A modern CLI calculator

Web version

Web version

Installation

cargo install --git https://github.com/mosmeh/beek

Reference

Operators

Operators Description
+ addition
- subtraction
*, ·, ×, whitespace multiplication
/, ÷ division
% modulo
^, ** exponentiation
! factorial

Precedence and associativity (ordered from highest precedence to lowest):

Category Operators Associativity
factorial ! left
exponentiation ^, ** right
multiplication whitespace left
multiplication *, ·, ×, /, ÷, % left
addition +, - left

Built-in functions

abs, acos, acosh, asin, asinh, atan, atan2, atanh, cbrt, ceil, cos, cosh, degrees, erf, erfc, exp, floor, fract, gamma, hypot, lgamma, ln, log, log10, log2, max, min, pow, radians, random, round, sign, sin, sinh, sqrt, tan, tanh, trunc

Commands

Command Description
help, ? show help
list, ls, ll list constants, variables and user-defined functions
delete, del, rm variable/function ... delete variable(s) or function(s)
reset reset environment
clear, cls clear screen
quit, exit quit

Variable assignment

> mass = 5; velocity = 3
> energy = mass * velocity^2 / 2
 = 22.5

Function definition

> binomial(n, k) = n! / k! / (n-k)!
> binomial(5, 3)
 = 10

Math and special constants

  • e, π (pi) and τ (tau)
  • ans and _ store the last result

Development

beek's web version is made with WebAssembly. The following commands will build the Rust codes, convert them to WebAssembly, and opens the web version in the browser.

npm install
npm start

To build the web version with optimizations enabled, run:

npm run build