Lately I’ve been making steady progress in porting over Rx APIs over to Dart with stream_ext, and with the release of version 0.2.0 a few more Rx methods have been added to the existing set of buffer, combineLatest, delay, max, merge, min, scan, sum, throttle, window and zip.   average StreamExt.average has the following signature: [...]

In a recent StackOverflow question the poster asked about the difference between tupled and curried form of a function in F#. In F#, you can use pattern matching to easily define a function that takes a tuple as an argument. For example, the poster's function was a simple calculation that multiplies the number of units sold n by the price p: 1: let salesTuple (price, count) = price * (float count) The function takes a single argument of type Tuple<float, int> (or, using the nicer F# notation float * int[...]

Using StageXL and Dart, I built another mini-game themed around our MMORPG Here Be Monsters this week. The game follows a pack of Taotie monsters, which is a type of spirit monster created when a ghost with immense hunger possesses a Chinese pot. Taotie originates from Chinese folklores and is one of many monsters that [...]

Over the last week or so, I’ve been looking at and playing around with the Streams API in Dart, which has been (in part at least) based on the Rx API, and it’s easy to see the parallels between the two sets of APIs and you can find most of the core Rx APIs on [...]

Recently, Cesar De Souza began moving his .NET machine learning library, Accord.NET, from Google Code to GitHub. The move is still in progress, but that motivated me to take a closer look at the library; given that it is built in C#, with an intended C# usage in mind, I wanted to see how usable it is from F#. There is a lot in the library; as a starting point, I decided I would try out its Support Vector Machine (SVM), a classic machine learning algorithm, and run it on a classic problem, automatically rec[...]