Parallel python

In case you wanna explore with parallel python, the web page is http://www.parallelpython.com/ Installation in Linux (debian based): * download the tarball, say to your home folder * in a console type: $ cd $ tar xzf pp-1.6.1.tar.gz $ cd pp-1.6.1/ $ sudo python setup.py install * it should be installed in just one sec. [...]

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Comment regions of a LaTeX file in Emacs

Usually, when writing in LaTeX, one would like to comment and/or un-comment a section of the manuscript. There is a package which allow you to comment a portion of the file. However, I found out that one can customize Emacs for inserting/remove a percentage sign at the beginning of each line of a selected region. [...]

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Ubuntu Unity and Netbook editions

Hi people! Since next launch will have Unity desktop, I decided to install the netbook and available unity edition for 10.10, but my experience has been less than pleasant. :-/ I’ll post a few comments about my worries, perhaps you know how to solve them already.  The left bar is nice: but so far I’ve [...]

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SAGE tip: Creating a Class for non-Abelian forms.

Hi everyone, today I start to write a new class for dealing with non-Abelian forms, i.e., forms with values in a certain Lie-algebra. This could be really useful when computing Yang-Mills theories in physics. So, I started by defining a new object which have two entries, a differential form and a matrix, and call it [...]

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SAGE tip: LaTeX trick in the notebook.

As I’ve mention before, actually I’m dealing with some messy supergravity calculations. Unlike most of my colleges, I don’t use Mathematica but their open source SAGE (applauses). Declaring (weird) Variables Through the calculations I should care about 10 dimensions, with a 5 dimensional restriction parametrized by  five different angles, which I call … thus, naturally [...]

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