Matt Jones al2o3cr

Inspired by Postgres: The Bits You Haven't Found:

\set n 1000;

SELECT 4*COUNT(DISTINCT(x, y))/(1.0*:n*:n) AS result FROM generate_series(0,:n) AS x, generate_series(0,:n) AS y WHERE x*x + y*y <= :n*:n;

This uses the simple method of checking every integer-valued point in [0,n] x [0,n] to see if it's inside the circle - the Wikipedia approximations to pi article has more details.

	<def tag="js-wrapper" attrs="convert">
	<set-scoped vals="&[]">
	<do param="default" />
	<% if convert %>
	<%= "[#{scope.vals.*.inspect.join(', ')}]" %>
	<% else %>
	<% scope.retval = scope.vals %>
	<% end %>
	</set-scoped>
	</def>

	module Outer
	module M
	def foo
	if self.class.superclass.instance_methods.include?('foo')
	super
	else
	puts 'module foo'
	end
	end
	end

	<ul id="menunav">
	<% Page.main_pages.each do \|page\| -%>
	<li style="width: 90px;">
	<% if page.redirect? -%>
	<%= link_to page.navlabel, {:action => page.action_name, :controller => page.controller_name, :name => page.name} -%>
	<% else -%>
	<%= link_to page.navlabel, view_page_path(page.name) %>
	<% unless page.sub_pages.empty? -%>
	<ul>
	<% page.sub_pages.each do \|subpage\| -%>

	en:
	reservations:
	messages:
	create:
	success: "The appointment was created successfully"
	error: "Couldn't create the appointment. #{errors}"
	update:
	success: "Changes to the appointment were saved"

	<def tag="page" attrs="title, full-title">
	<% full_title \|\|= "#{title} : #{app_name}" %>
	<html merge-attrs>
	<head param>
	<title param><%= strip_tags full_title %></title>
	<stylesheet name="reset" />

	<do param="scripts">
	<javascript param name="prototype, effects, dragdrop, controls, lowpro, hobo-rapid"/>
	<if-ie version="lt IE 7" param="fix-ie6">

	<def tag="tabs">
	<set-scoped tab-names="&[]" tab-contents="&{}">
	<ul class="tabs" merge>
	<do param="default" />
	</ul>
	<do repeat="&scope.tab_names">
	<div id="#{this}">
	<%= scope.tab_contents[this] %>
	</div>
	</do>

	GC.start
	first_count = ObjectSpace.each_object(String) { \|x\| nil }

	def dummy_function
	'foo'
	end

	second_count = ObjectSpace.each_object(String) { \|x\| nil }
	GC.start
	second_after_gc_count = ObjectSpace.each_object(String) { \|x\| nil }

	require 'benchmark'

	nelements = 10
	nlines = 10

	def repeating_string(base, elements, lines)
	(([base]elements).join(',')+"\n")lines
	end

	# test string

	require 'bigdecimal'

	def to_decimal(digits, dp)
	digits = digits.dup
	if dp < -digits.length
	digits.unshift(([nil](-digits.length-dp)))
	end
	digits.insert(dp+digits.length, '.').map { \|x\| x \|\| '0' }.join
	end