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You can have lots of fun with unicode in Ruby. Here are a few ways, and we’d love to see more!

Usage

Fractions

You can use many fractions as literals:

 * 5
30 + ½
 / 

Roots

You can use square root, cube root, and fourth root:

 4
 27
 81

Trigonometry

There’s a sine wave unicode character, so we can calculate sine of a number:

 π/2

Constants

Easily use unicode costants:

π
τ
𝑒

And have fun with them:

(-..).cover?  + 1

Exponents

You can raise to the powers of 0–9 as well as arbitrary numbers:

2.
1.617 * 10.(13)

Division

21.÷ 7
6. 24

Installation

Add this line to your application’s Gemfile:

gem 'unicode_math'

And then execute:

$ bundle

Or install it yourself as:

$ gem install unicode_math

Contributing

  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create new Pull Request