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@whiteley
whiteley / dbus-init-checkconf.sh
Created December 11, 2012 07:04
#!/bin/bash
set -o errexit
set -o nounset
if [[ ${#} -ne 1 ]]
then
echo "Usage: ${0} upstart-conf-file" >&2
exit 1
fi
@vorandrew
vorandrew / blackscholes.js
Created September 4, 2012 16:44 — forked from joaojeronimo/blackscholes.js
Black-Scholes in Javascript: A rewrite of http://www.espenhaug.com/black_scholes.html
/*
PutCallFlag: Either "put" or "call"
S: Stock Price
X: Strike Price
T: Time to expiration (in years)
r: Risk-free rate
v: Volatility
This is the same one found in http://www.espenhaug.com/black_scholes.html
but written with proper indentation and a === instead of == because it's
@MohamedAlaa
MohamedAlaa / tmux-cheatsheet.markdown
Last active October 22, 2025 18:39
tmux shortcuts & cheatsheet

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname
@jonnyreeves
jonnyreeves / testrunner.html
Created June 2, 2012 13:32
Unit Testing Promises with Sinon.js
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<link rel="stylesheet" href="http://code.jquery.com/qunit/git/qunit.css" type="text/css" media="screen" />
<!-- when.js Promises implementation -->
<script src="https://raw.github.com/cujojs/when/master/when.js"></script>
<!-- Unit testing and mocking framework -->
<script type="text/javascript" src="http://code.jquery.com/qunit/git/qunit.js"></script>
@chrisyco
chrisyco / fixext.py
Created May 23, 2011 04:05
Recursively rename UPPERCASE filename extensions to lowercase
#!/usr/bin/env python
"""Epic script to rename scary uppercase extensions (like .JPG) to
more friendly lowercase (like .jpg).
How to use
==========
Recursively rename all files in the current directory::
fixext
@aasmith
aasmith / javascript option stuff.js
Created August 14, 2010 22:34
black scholes & IV in javascript
/* Returns probability of occuring below and above target price. */
function probability(price, target, days, volatility) {
var p = price;
var q = target;
var t = days / 365;
var v = volatility;
var vt = v*Math.sqrt(t);
var lnpq = Math.log(q/p);