gderosa

import pickle

PRIMEFILE = 'primes.pkl'
UPPERLIMIT = 1_000_000

# This script finds Goldbach pairs for odd numbers starting from the last prime found.
# It uses a brute-force method to find the pairs.
# It also serializes the primes found to a file for future use.
# The script will continue from the last prime found in the file.
# It will also handle exceptions and save the state of the primes to a file.

gderosa

#!/usr/bin/perl -w

# unescape.pl
#
# Copyright (C) 2007 Guido De Rosa <job at guidoderosa dot net>
# Many thanks to Peter Jakobi for contributions and improvements
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation

gderosa

// Choose a temperature only at one of the three measurement scales, leave the other two "undefined".
let celsius = undefined
let fahrenheit = undefined
let kelvin = 300


function cToF() {
  return celsius * 9/5 + 32
}
function cToK() {

gderosa

import random

N=8

6**N

dices = [1]*N

n = 1
while dices != [6]*N:

gderosa

require 'digest/sha1'

0.upto(1000).each do |i|
  s = i.to_s
  digest = Digest::SHA1.hexdigest(s)
  fg = digest[0..5]

  fg_     = {}
  fg_[:r] = fg[0..1]
  fg_[:g] = fg[2..3]

gderosa

#!/bin/bash

# Put this in /etc/udev/rules.d/automount.rules
#
# ACTION=="add", ENV{DEVTYPE}=="partition", RUN+="domount %N"

# All based on:
# https://wiki.archlinux.org/index.php/USB_Storage_Devices

# But:

gderosa

require 'securerandom'

avg = nil

0.upto(1000) do |k|

  n = 0
  places = {}

  loop do

gderosa

require 'thin'
require 'sinatra'

# by Guido De Rosa, guido.derosa at vemarsas.it, 2012, distributed under the
# same licensing conditions of jqueryFileTree.

# Based on connectors/jqueryFileTree.rb contained in
# labs.abeautifulsite.net/archived/jquery-fileTree/jquery.fileTree-1.01.zip
# An adaptation from CGI to Sinatra.

gderosa

see also  
http://wiki.micasaverde.com/index.php/UI_Simple
http://jsoneditor.net/
http://jsonviewer.stack.hu/

Assuming IP = 192.168.33.155


Get devices etc. (simplified)

gderosa

WIDTH = 20 # Copyright (C) 2011, Guido De Rosa; License: MIT
histogram = Array.new(1 + WIDTH, 0)  
2800.times do  
  x = WIDTH/2 
  WIDTH.times { x += (rand <=> 0.5)/2.0 } # random-walk 
  histogram[x] += 1
end
histogram.each_with_index do |bar_value, i|
  printf "%02d ", i; (bar_value.to_f/10).ceil.times {print '|'}; puts 
end