At the moment I’m working on some maths code written in a combination of standard Python and its mathematical superset, Sage. The code is fairly computationally expensive (it’s essentially a brute force search for chemical reaction networks that are monotone). Consequently, after getting the code working as a proof-of-concept, I wanted to compile it to C using Cython to get a bit more speed out of it. I found the documentation on converting Sage and Python scripts to Cython a bit vague, particularly when it comes to combining the two, so this article gives step by step instructions based on my findings.
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I’m very excited to announce the public release of CoNtRol, a web application designed to carry out mathematical analysis of chemical reaction networks. A formal introduction has been accepted for publication in Bioinformatics, and technical documentation is available on the reaction networks wiki. In this article I want to talk a bit about the design philosophy behind CoNtRol.
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How to Setup Brother MFC-6490CW Network Printer with Ubuntu

  1. Configure your router to reserve a static IP address for your printer. This way your computer will always know which address to contact the printer on.
    Here's a rough guide on how to do that: http://lifehacker.com/5822605/how-to-set-up-dhcp-reservations-so-you-never-have-to-check-an-ip-address-again
    Make a note of your printer's IP address.

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