Benjamin Gudehus hastebrot

The introduction to Reactive Programming you've been missing

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.

The difference between XYZ and TMS tiles and how to convert between them

Lots of tile-based maps use either the XYZ or TMS scheme. These are the maps that have tiles ending in /0/0/0.png or something. Sometimes if it's a script, it'll look like &z=0&y=0&x=0 instead. Anyway, these are usually maps in Spherical Mercator.

Good examples are OpenStreetMap, Google Maps, MapBox, MapQuest, etc. Lots of maps.

Most of those are in XYZ. The best documentation for that is slippy map tilenames on the OSM Wiki, and Klokan's Tiles a la Google.

In which I begrudglingly compare MapCSS and CartoCSS because people keep asking.

I hate this kind of writing - it's annoying to try to describe one bit of software versus another, and this can and will fall out of date every time that somebody makes a big change to their library. But people want it, or whatever, so here it is.

Since CartoCSS and Cascadenik are weird cousins, the big difference is between them and MapCSS.

Let's see, differences:

CartoCSS is designed for Mapnik. That is, it tries to expose every possible Mapnik style option and ability, and supports every Mapnik datasource.
MapCSS is designed for OSM. That is, it makes it easy to style based on OpenStreetMap data types, tags, and so on.

Direct links to free Springer maths books (pdf versions)

duplicates = multiple editions

A Classical Introduction to Modern Number Theory,Kenneth IrelandMichael Rosen

A Course in Arithmetic,Jean-Pierre Serre

This is a plain-text version of Bret Victor’s reading list. It was requested by hf on Hacker News.

Highly recommended things!

This is my five-star list. These are my favorite things in all the world.

A few of these works have had an extraordinary effect on my life or way of thinking. They get a sixth star. ★

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	<html>
	<head>
	<meta http-equiv="Content-type" content="text/html; charset=utf-8">
	<title>Mobile Patent Suits</title>
	<script type="text/javascript" src="http://mbostock.github.com/d3/d3.js?1.29.1"></script>
	<script type="text/javascript" src="http://mbostock.github.com/d3/d3.geom.js?1.29.1"></script>
	<script type="text/javascript" src="http://mbostock.github.com/d3/d3.layout.js?1.29.1"></script>
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	import javafx.application.Application;
	import javafx.beans.property.DoubleProperty;
	import javafx.beans.property.ObjectProperty;
	import javafx.beans.property.ReadOnlyObjectProperty;
	import javafx.beans.property.SimpleObjectProperty;
	import javafx.beans.value.ChangeListener;
	import javafx.beans.value.ObservableValue;
	import javafx.collections.FXCollections;
	import javafx.collections.ObservableList;
	import javafx.event.EventHandler;

	import javafx.application.Application;
	import javafx.fxml.FXMLLoader;
	import javafx.scene.Scene;
	import javafx.scene.layout.Pane;
	import javafx.stage.Stage;

	import java.io.IOException;

	/**
	* Main application class.

	# https://github.com/matplotlib/matplotlib/issues/881
	# Several of the ColorBrewer maps are "qualitative", meaning
	# they are just a group of colors that can be used together
	# for categories of data. So I remapped Accent to segments
	# instead of continuous:

	# Actually, these should be used with ListedColormap, and
	# the number of colors should depend on the number of
	# categories in the data, with colors removed from the
	# list in a certain order?

	/*
	* Copyright 2015 Michael Rozumyanskiy
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software