jubishop

def expn(a, b)
  a = a.to_r
  b = b.to_i

  d = 1.to_r
  while(b > 0)
    d *= a if (b % 2 == 1)
    b /= 2
    a *= a if (b > 0)
    d = d.round(100)

jubishop

require 'irb/completion'

require 'utility_belt'

require 'interactive_editor'
require 'awesome_print'
AwesomePrint.irb!

class Object
  def interesting_methods

jubishop

# This program is a demo of how to find factors for numbers

# Print message to ask the user for a number
# "puts" is shorthand for "put string".
# It's how we output text to the user.
puts "What number shall we find factors for? "

# We want to get input from the user and then store that input
# in a "variable" so that we can access it again later.
# We've decided to name our variable "number_to_factor".

jubishop

puts 'What number shall we find factors for? '

number_to_factor = gets.to_i

puts "Factors for #{number_to_factor} are:"

1.upto(number_to_factor) { |number_to_test|
  if (number_to_factor % number_to_test == 0)
    puts number_to_test
  end

jubishop

# This program is a demo of how to find factors for numbers

# Print message to ask the user for a number
puts 'What number shall we find factors for? '

# We want to get input from user and store in a variable.
# We've decided to name our variable number_to_factor.
# 'gets' is the name of the function that takes input from the user.
# By default 'gets' returns a variable that's called a "string" which means its just text.
# But we actually need our variable to be a number for calculations, so adding 

jubishop

# This program is a demo of how to find factors for numbers
# But it's highly inefficient.  Can you think of how to make it faster?

# Print message to ask the user for a number
puts 'What number shall we find factors for? '

# Get input from user and store in a variable we've decided 
# to name number_to_factor.
# 'gets' is the name of the function that takes input from the user.
# By default 'gets' returns a variable that's called a "string" which means its just text

jubishop

def Dollar(val)
  Dollar.createRoundedDollar(val.kind_of?(Dollar) ? val.raw : val)
end

def getDollar
  input = gets.chomp
  return nil if (input.empty?)
  Dollar.createRoundedDollar(input)
end

jubishop

girl = 0
boy = 1

at_least_one_girl = 0
all_girls = 0

1000000.times{
  one_girl = false
  num_girls = 0
  3.times {

jubishop

$me = PUT_YOUR_UID_HERE;

$friends = user_get_reciprocal_friends($me);
$friends_info = user_multiget_basic_info($friends);

$male_friends = array();
$female_friends = array();
foreach ($friends_info as $uid => $friend_info) {
if (gender_is_male($friend_info['gender'])) {
$male_friends[] = $uid;

jubishop

// $weights = array of weights
// $num = number of result desired.
// returns array of indices chosen from $weights.
function pluck($weights, $num) {
  $chosen = array();
  while (count($chosen) < $num) {
    $sum = array_sum($weights);
    $plucked = rand(1, $sum);
    $count = 0;
    for ($i = 0;