tompng

require 'matrix'
def powsum_params(k)
  Matrix[*(k+2).times.map{|a|
    (k+2).times.map{|b|(a+1)**b}
  }].lup.solve((k+2).times.map{|n|(1..n+1).sum{_1**k}}).to_a
end

def assign_params(params, x)
  params.each_with_index.sum {|p,i|p*x**i}
end

tompng

require 'rbs'
require 'rbs/cli'

loader = RBS::CLI::LibraryOptions.new.loader
def loader.each_dir
  @loaded_dirs ||= Set.new
  super do |source, dir|
    next if @loaded_dirs.include? dir
    @loaded_dirs << dir
    yield source, dir

tompng

def prime_test?(n, a)
  a.pow(n-1,n)==1
end

def ruby_mark(n,m,x,y)
  0.5*x.abs+y.abs<n && y>-m
end

def pattern(ow, oh, iw, ih)
  ((1-oh)..ow).map{|y|

tompng

username = '...'
commits = `git log | grep -n1 "#{username}"`.scan(/-commit ([0-9a-f]+)/).flatten
result = commits.map do |commit|
  stat = `git show #{commit} --stat -- lib`
  diff = stat[/(\d+) insertion/].to_i - stat[/(\d+) deletion/].to_i
  [commit, diff]
end

add_deletes = commits.map do |commit|
  stat = `git show #{commit} -- lib`

tompng

require 'chunky_png'
img = ChunkyPNG::Image.from_file('okinawa_ishigaki_small.png')
alphas = img.height.times.map do |y|
  img.width.times.map do |x|
    ((img[x,y] >> 8) & 0xff) / 255.0
  end
end

lines = Hash.new(0)
borders = Hash.new(0)

tompng

files_rbreadline = Dir.glob('rb-readline/lib/**/*.rb')
files_reline = Dir.glob('reline/lib/**/*.rb')

K = 123456789
P = (1 << 81) | 17

def hashes(text, n)
  output = {}
  hash = 0
  hash2 = 0

tompng

return if ENV['WITHOUT_IRBRC']

{ IRB: 'irb', Reline: 'reline', ReplTypeCompletor: 'repl_type_completor' }.each do |const_name, lib|
  require lib
  const = Object.const_get(const_name)
  version = const::VERSION
  dir = File.expand_path File.join(File.dirname(const.const_source_location(:VERSION).first), '../../')
  if File.exist?(File.join(dir, '.git'))
    Dir.chdir dir do
      branch = `git branch`[/^\* .+/][2..]

tompng

      %w@state=32;(st@=>s;at_exit{eval(
    c=s*'')};s+=%w@ate..).each{|s|a=64.ch
  r;t=((-11..11).map{|iy|((-22..22).map{|ix
|x,y=((ix+iy*2i)*(1i**(s/16r))).rect;[x.abs+(
y-5).abs,y+10].max<23.4??X:32.chr}*'').rstrip

tompng

require 'matrix'
module RegEqSolver
  class RHS
    alias ~ binding
    public :~
  end
  [Integer, Float, Rational, Complex].each do |klass|
    refine klass do
      def ~
        $rhs = self

tompng

require 'open3'
# Usage: cat code.rb | ruby ansi_pbcopy.rb --size 64 --font monospace

FONT = ARGV[ARGV.index('--font') + 1] rescue 'courier'
SIZE = ARGV[ARGV.index('--size') + 1] rescue 16
COLORS = ARGV[ARGV.index('--color') + 1].split rescue %w[#000000 #A00000 #008000 #606000 #0000C0 #800080 #008080 #808080]


initial = { bg: 9, fg: 9, bold: false, italic: false, underline: false }
style = initial.dup