Chris Polis cmpolis

These links no longer work. Springer have pulled the free plug.

Graduate texts in mathematics

duplicates = multiple editions

A Classical Introduction to Modern Number Theory, Kenneth Ireland Michael Rosen

Deploy Rails app to digitalocean with nginx, unicorn, capistrano & postgres

Create droplet of your liking (ubuntu 12.10 x32)

ssh to root in terminal with your server ip

ssh root@123.123.123.123

Add ssh fingerprint and enter password provided in email

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

Collections

each(array)

Underscore example:

_.each([1, 2, 3], function(num) { alert(num); });

Sinatra like routes in Rails controllers

A proof of concept of having Sinatra like routes inside your controllers.

How to use

Since the router is gone, feel free to remove config/routes.rb. Then add the file below to lib/action_controller/inline_routes.rb inside your app.

	M[16],X=16,W,k;main(){T(system("stty cbreak")
	);puts(W&1?"WIN":"LOSE");}K[]={2,3,1};s(f,d,i
	,j,l,P){for(i=4;i--;)for(j=k=l=0;k<4;)j<4?P=M
	[w(d,i,j++)],W\|=P>>11,l*P&&(f?M[w(d,i,k)]=l<<
	(l==P):0,k++),l=l?P?l-P?P:0:l:P:(f?M[w(d,i,k)
	]=l:0,++k,W\|=2*!l,l=0);}w(d,i,j){return d?w(d
	-1,j,3-i):4*i+j;}T(i){for(i=X+rand()%X;M[i%X]
	*i;i--);i?M[i%X]=2<<rand()%2:0;for(W=i=0;i<4;
	)s(0,i++);for(i=X,puts("\e[2J\e[H");i--;i%4\|\|
	puts(""))printf(M[i]?"%4d\|":" \|",M[i]);W-2

	class BaseChart

	accessors:
	width: 100
	height: 100

	_margin: {}
	@margin: top: 0, right: 0, bottom: 0, left: 0

	# http://bost.ocks.org/mike/chart/

	class BaseChart

	constructor: ->
	@_width = 720
	@_height = 80

	draw: (selection) =>
	me = @
	selection.each( (d, i) -> me._draw(this, d, i) )

	/**
	* Get YouTube ID from various YouTube URL
	* @author: takien
	* @url: http://takien.com
	* For PHP YouTube parser, go here http://takien.com/864
	*/

	function YouTubeGetID(url){
	var ID = '';
	url = url.replace(/(>\|<)/gi,'').split(/(vi\/\|v=\|\/v\/\|youtu\.be\/\|\/embed\/)/);

	// Media Queries in Sass 3.2
	//
	// These mixins make media queries a breeze with Sass.
	// The media queries from mobile up until desktop all
	// trigger at different points along the way
	//
	// And important point to remember is that and width
	// over the portrait width is considered to be part of the
	// landscape width. This allows us to capture widths of devices
	// that might not fit the dimensions exactly. This means the break