A really simple example using the iruby Kernel:
puts 'Hello, world!'
require 'set' # Deals with a collection of unordered values with no duplicates
# Include this module to make your class taggable. The names of the
# instance variable and the setup method are prefixed with "taggable_"
# to reduce the risk of namespace collision. You must call
# taggable_setup before you can use any of this module's methods.
module Taggable
attr_accessor :tags
def taggable_setup
@tags = Set.new
end
def add_tag(tag)
@tags << tag
end
def remove_tag(tag)
@tags.delete(tag)
end
end
IRuby.display IRuby.table({a:[11,12,13,14],b:[21,22,23],c:[31,32,33,34]})
$stderr.puts 'Error!'
Math.sqrt(2)
An plot example:
require 'gnuplot'
Gnuplot::Plot.new do |plot|
plot.xrange '[-0.5:0.5]'
plot.title 'Example plot'
plot.ylabel 'x'
plot.xlabel 'sin(1/x)'
plot.samples 10000
plot.data << Gnuplot::DataSet.new('sin(1/x)') do |ds|
ds.with = 'lines'
ds.linewidth = 2
end
end
Mathjax support built in:
\begin{align} \dot{x} & = \sigma(y-x) \ \dot{y} & = \rho x - y - xz \ \dot{z} & = -\beta z + xy \end{align}