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Threading

We’re quite familiar with the idea of writing a program that follows a specific sequence of steps as outlined in, say, a main() function. A Thread is also a series of steps with a beginning, a middle, and an end. A thread’s sequence, however, can run independently of the main program. In fact, we can launch any number of threads at one time and they will all run concurrently. Visit the Java site for a more involved explanation.

This is incredibly useful when it comes to data mining, as we can have separate threads retrieving different pieces of information from the network. If one gets stuck or has an error, the entire program won’t grind to a halt, since the error only stops that individual thread. To create independent, asynchronous threads, we simply extend the Thread class.

I bought a USB webcam off of eBay quite some time ago, and I decided to connect it to my telescope with a little bit of hardware hackery. I'll have to see about posting a writeup on how I did that at a later time. Anyway, when I installed my camera software, I quickly found how horrible the program was. It gave a tiny preview of what the camera saw, and had no way of capturing images or video without waaaay too many clicks of the mouse. That's when I decided to write my own in Python.

Manage the system resource limits for a Unix program.

This program generates a book agenda file in PDF format, ready to be printed or loaded on a ebook reader.

0047 is an organization for projects in and in between the fields of art and architecture. Founded in Berlin in 2004, 0047 was originally an exhibition space for Norwegian art and architecture but it soon became an internationally based project involving artist, architects and curators from all over the world. Since the opening over 130 artists, architects and curators have been involved in over 30 exhibitions and projects, both in our own space or in collaboration with other institutions. Over 60 people from all over the world has attended our studio program.

The following form calls a program written in C , that converts a grammar into syntax diagrams. The diagrams can be used for direct printing and inclusion in printable text files. Two examples for a grammar are given (a variant of the EBNF-grammar and the XPath-grammar).

The following form calls a program written in C , that converts a grammar into syntax diagrams.

Générateur de diagramme de syntaxe.

As software becomes more and more complex, it is more and more important to structure it well. Well-structured software is easy to write, easy to debug, and provides a collection of modules that can be re-used to reduce future programming costs. Conventional languages place conceptual limits on the way problems can be modularised. Functional languages push those limits back. In this paper we show that two features of functional languages in particular, higher-order functions and lazy evaluation, can contribute greatly to modularity. As examples, we manipulate lists and trees, program several numerical algorithms, and implement the alpha-beta heuristic (an algorithm from Artificial Intelligence used in game-playing programs). Since modularity is the key to successful programming, functional languages are vitally important to the real world.