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Emacs Tip: Using Macros 26 Jul 2013 | 06:50 pm
Yesterday I started to edit an old file, and it happened that in my set of definitions I changed a bold math-operator with no arguments \df, by a math-operator with one argument (which happens to by...
LaTeX tip: \allowdisplaybreaks 14 Jun 2013 | 09:33 pm
A quick tip: When writing a long aligned equation, use the following command, \allowdisplaybreaks in the preamble. Example \documentclass{report} \usepackage{amsmath} \usepackage{lipsum} \allowdisplay...
My coins collection 27 Apr 2013 | 06:00 pm
A long time ago, my childhood’s best friend (Alejandro) show me his coins collection. Until that day, I just save a few coins… but never had realised that one could collect them. Thus, I started (offi...
Using CalcHEP (1) 27 Apr 2013 | 01:07 am
After installing CalcHEP (see this post), oen should go to the working directory created by CalcHEP and running the program, $ cd ~/Documents/WorkCalcHEP $ ./calchep Then the CalcHEP shell will appear...
Installing CalcHEP on Ubuntu 26 Apr 2013 | 05:09 pm
In order to install CalcHEP, one needs to download the code and to compile it. The code can be found at http://theory.sinp.msu.ru/~pukhov/calchep.html, as usual it is recommended to download the curre...
Installing IPython in Linux (Ubuntu) 20 Apr 2013 | 03:48 pm
If you have programmed in Python, perhaps you would know IPython. IPython is an interactive shell for python programming. Installing IPython In the terminal (Ctrl+Alt+T), run the command line $ sudo a...
Linux Tip: Use of xargs 17 Apr 2013 | 11:46 pm
The command xarg is used to pass the standard output (of a previous command) as standard input to the following. Worked Example I want to delete all files in the current directory containing numbers i...
Change the prompt of the Linux Terminal 17 Apr 2013 | 09:10 pm
When I opened a terminal the prompt said myname@mycomputer:~$ which is nice. But after changing the directory to Folder/Subfolder/Subsubfolder, it got messy, myname@mycomputer:~/Folder/Subfolder/Subsu...
Deleting Mathematica in Linux (Ubuntu) 17 Apr 2013 | 08:35 pm
If for any reason you need to un-install Mathematica, you should delete the files associated to it. If the installation was the usual one, follow the below steps. $ cd /usr/local $ sudo rm -r Wolfram...
Linux Command: lsusb 10 Sep 2012 | 05:21 pm
The lsusb command lists the USB devices of the computer. Example: $ lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub ...
