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@ghalimi
ghalimi / XIRR.js
Created January 30, 2013 01:11
XIRR Function
// Copyright (c) 2012 Sutoiku, Inc. (MIT License)
// Some algorithms have been ported from Apache OpenOffice:
/**************************************************************
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
@robinsloan
robinsloan / langoliers.rb
Last active February 27, 2025 02:44
The Langoliers, a tweet deletion script
require "rubygems"
require "twitter"
require "json"
# things you must configure
TWITTER_USER = "your_username"
MAX_AGE_IN_DAYS = 1 # anything older than this is deleted
# get these from dev.twitter.com
CONSUMER_KEY = "your_consumer_key"
@jboner
jboner / latency.txt
Last active May 9, 2025 13:18
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD
@pmuellr
pmuellr / beeper.js
Created April 26, 2012 15:28
beep() and boop() with HTML5 Audio
//-----------------------------------------------------------------------------
// The MIT License
//
// Copyright (c) 2009 Patrick Mueller
//
// 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 the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
// of the Software, and to permit persons to whom the Software is furnished to do
@webwurst
webwurst / pyside_webkit_javascript.py
Created March 26, 2012 08:01
PySide/WebKit/Javascript
import sys
from PySide.QtCore import QObject, Slot
from PySide.QtGui import QApplication
from PySide.QtWebKit import QWebView
html = """
<html>
<body>
<h1>Hello!</h1><br>
@webwurst
webwurst / flaskr.py
Created March 6, 2012 11:09
This is the Flaskr-Tutorial using CouchDB instead of sqlite. For the original Tutorial see http://flask.pocoo.org/docs/tutorial/.
# -*- coding: utf-8 -*-
"""
Flaskr
~~~~~~
A microblog example application written as Flask tutorial with
Flask and couchdbkit.
:copyright: (c) 2010 by Armin Ronacher.
:license: BSD, see LICENSE for more details.
/* requires the IconicStroke font from https://github.com/somerandomdude/Iconic/ */
@font-face {
font-family: 'IconicStroke';
src: url("iconic_stroke.eot");
src: local('IconicStroke'),
url("iconic_stroke.svg#iconic") format('svg'),
url("iconic_stroke.otf") format('opentype');
}
@nanobox-io
nanobox-io / gist:1756086
Last active September 30, 2015 08:58
Deploy Hook Available Executables
awk
bunzip2
bzcat
bzip2
cat
chown
cp
curl
cut
date
@basvandorst
basvandorst / Greplin-palindrome.php
Created December 12, 2011 19:02
PHP: Find longest palindrome
<?php
/**
* Easy way to find the longest palindrome in a string
*
* Solution for: http://challenge.greplin.com/
* The Greplin Programming Challenge: Version 1
*
* @author Bas van Dorst <[email protected]>
*/
$data = "FourscoreracecarsthatandsevenyearsagoourfaathersbroughtforthonthiscontainentanewnationconceivedinzLibertyanddedicatedtothepropositionthatallmenarecreatedequalNowweareengagedinagreahtcivilwartestingwhetherthatnaptionoranynartionsoconceivedandsodedicatedcanlongendureWeareqmetonagreatbattlefiemldoftzhatwarWehavecometodedicpateaportionofthatfieldasafinalrestingplaceforthosewhoheregavetheirlivesthatthatnationmightliveItisaltogetherfangandproperthatweshoulddothisButinalargersensewecannotdedicatewecannotconsecratewecannothallowthisgroundThebravelmenlivinganddeadwhostruggledherehaveconsecrateditfaraboveourpoorponwertoaddordetractTgheworldadswfilllittlenotlenorlongrememberwhatwesayherebutitcanneverforgetwhattheydidhereItisforusthelivingrathertobededicatedheretotheulnfinishedworkwhichtheyw
@chitchcock
chitchcock / 20111011_SteveYeggeGooglePlatformRant.md
Created October 12, 2011 15:53
Stevey's Google Platforms Rant

Stevey's Google Platforms Rant

I was at Amazon for about six and a half years, and now I've been at Google for that long. One thing that struck me immediately about the two companies -- an impression that has been reinforced almost daily -- is that Amazon does everything wrong, and Google does everything right. Sure, it's a sweeping generalization, but a surprisingly accurate one. It's pretty crazy. There are probably a hundred or even two hundred different ways you can compare the two companies, and Google is superior in all but three of them, if I recall correctly. I actually did a spreadsheet at one point but Legal wouldn't let me show it to anyone, even though recruiting loved it.

I mean, just to give you a very brief taste: Amazon's recruiting process is fundamentally flawed by having teams hire for themselves, so their hiring bar is incredibly inconsistent across teams, despite various efforts they've made to level it out. And their operations are a mess; they don't real