| def complex_fixed_point_1024bits_pow(x, n, bits: 1024) | |
| ans = base = 1 << bits | |
| x2 = Complex.rect(*x.rect.map{(_1.to_r * base).round}) | |
| mult = ->(a, b) { Complex.rect(*(a * b).rect.map { _1 / base }) } | |
| n.digits(2).each do |a| | |
| ans = mult[ans, x2] if a == 1 | |
| x2 = mult[x2, x2] | |
| end | |
| ans.fdiv base | |
| end |
TERM value that has different kcuu1|kcud1|kcuf1|kcub1|khome|kend|kpp|knp|kdch1 value from the one Reline registers when terminfo is not available
| TERM | count | values |
|---|---|---|
| aaa-60 | 8 | \e[A \e[B \e[C \e[D \e[H - - - \e[P |
| aixterm | 2 | \e[A \e[B \e[C \e[D \e[H \e[146q \e[150q \e[154q \e[P |
| cons25 | 17 | \e[A \e[B \e[C \e[D \e[H \e[F \e[I \e[G \x7F |
| d210-dg | 2 | \x17 \x1A \x18 \x19 \b - - - |
| mach | 19 | \e[A \e[B \e[C \e[D \e[H \e[Y \e[V \e[U \e[9 |
| qansi | 35 | \e[A \e[B \e[C \e[D \e[H \e[Y \e[V \e[U \e[P |
| require 'prism' | |
| require 'ripper' | |
| chars = %w[1 % = a b == * . ( ) , % ? ** & [ ] { } | ; : => ~ ! ^ || && '' .. ... < > + $a @a] + [' ', "\n", ' if ', ' and ',' rescue ', ' in '] | |
| p seed: seed = rand(10000) | |
| srand seed | |
| $VERBOSE=nil | |
| (3..10).each do |n| | |
| [chars.size**n, 100000].min.times do |i| | |
| code = n.times.map{chars.sample}.join | |
| p [n, i] if i % 1000 == 0 |
| <canvas> | |
| <script> | |
| ctx = document.querySelector('canvas').getContext('2d') | |
| ctx.clearRect(0, 0, 1000, 1000) | |
| const blur = 12 | |
| ctx.shadowBlur = blur | |
| ctx.shadowColor = 'black' | |
| ctx.shadowOffsetX = blur | |
| ctx.shadowOffsetY = blur | |
| const x = 20 |
| require 'chunky_png' | |
| case ARGV[0] | |
| when 'red' | |
| FLOOR_COLOR = [0xff, 0x80, 0x80] | |
| LEAF_COLOR = 0xff0044 | |
| TRUNK_COLOR = 0xff8888 | |
| RAY_COLOR = [2, 1, 1] | |
| LIGHT_THETA = 0.1 | |
| when 'green' |
| codepoints = File.read('EastAsianWidth.txt').scan(/^[0-9A-F]{4,6}/).map { _1.to_i(16) } | |
| widths = codepoints.map do |cp| | |
| c = cp.chr('utf-8') rescue (next nil) | |
| print "\e[H\e[K#{c}\e[6n" | |
| STDOUT.flush | |
| /\e\[\d+;(\d+)R/ =~ STDIN.raw { STDIN.readpartial(1000) } | |
| $1.to_i - 1 | |
| end | |
| codepoints.zip(widths).reject { | |
| !_2 || Reline::Unicode.get_mbchar_width(''<<_1) == _2 || ('a'<<_1).grapheme_clusters.size == 1 |
| <body> | |
| <script> | |
| const width = 1600 | |
| const height = 900 | |
| function f(x) { | |
| return 0.48+(-Math.cos(12*x+3*Math.sin(6*x-4)/4-1)*(1.1-x)+(3*x-(2*x-1)**2)*0.5)/20 | |
| } | |
| function g(x, a) { | |
| return ( | |
| Math.sin(12.4*x-a)+Math.sin(14.3*x+a)+ |
| require 'io/console' | |
| require 'pty' | |
| command = ARGV.join(' ') | |
| if command.empty? | |
| puts 'Error: Command not specified.' | |
| puts "Usage: `ruby #{File.basename __FILE__} options -- command`" | |
| exit | |
| end |
| srand 0 | |
| 6.times do |index| | |
| fg = "##{3.times.map{"%02x" % rand(0..100)}.join}" | |
| bg = "##{3.times.map{"%02x" % rand(150..255)}.join}" | |
| face = :"face#{index}" | |
| Reline::Face.config(face) do | |
| _1.define(:default, foreground: fg, background: bg) | |
| end | |
| pointClass = Data.define :x, :y | |
| prev = nil |
| require 'irb' | |
| require 'reline' | |
| $status = nil | |
| Reline::Face.config(:editor_status) do |face| | |
| face.define :default, foreground: :white, background: :blue | |
| end | |
| Reline.add_dialog_proc :editor_status, ->(*) do | |
| if (message = $status) | |
| $status = nil |