shivamanhar

#set the intensity of the halo
intensity = 250.0

#create a noramlizing constant so the halo fully fades out at the corners
denominator = intensity/((n/2)**2 + (m/2)**2)

#get the normalized squared distances of each pixel from the center
squared_distances = ((x-center_x)**2 + (y-center_y)**2)*denominator

#reshape this 2D matrix into a 3D matrix 

shivamanhar

<?php 
$apnsHost = 'gateway.sandbox.push.apple.com';
$apnsCert = 'apns-dev.pem';
$apnsPort = 2195;

$streamContext = stream_context_create();
stream_context_set_option($streamContext, 'ssl', 'local_cert', $apnsCert);

$apns = stream_socket_client('ssl://' . $apnsHost . ':' . $apnsPort, $error, $errorString, 2, STREAM_CLIENT_CONNECT, $streamContext);

shivamanhar

<?php 

class Layouts
{

  // hold codeigniter instance
	private $CI;

	// hold layout title
	private $layout_title = null;

shivamanhar

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

So you're curious in learning this new thing called Reactive Programming, particularly its variant comprising of Rx, Bacon.js, RAC, and others.

Learning it is hard, even harder by the lack of good material. When I started, I tried looking for tutorials. I found only a handful of practical guides, but they just scratched the surface and never tackled the challenge of building the whole architecture around it. Library documentations often don't help when you're trying to understand some function. I mean, honestly, look at this:

Rx.Observable.prototype.flatMapLatest(selector, [thisArg])

Projects each element of an observable sequence into a new sequence of observable sequences by incorporating the element's index and then transforms an observable sequence of observable sequences into an observable sequence producing values only from the most recent observable sequence.