Public key (Photo credit: Michael Drummond)
The goal was to migrate from HTTP to HTTPS
The HTTPS protocol rely on TLS (previously SSL) to ensure data integrity (data cannot be modified unnoticed), confidentiality (requested URL and content are only known by end points) and authentication (end points are …
Category: network security Tagged: Unix Debian tools how to network security
Read More
Crawling (Photo credit: Wikipedia)
This article is the follow up of the one about wikidata crawling.
Wikipedia has specific infobox templates. This is the normalized way to enter specification inside wikipedia articles. It provides templates with already defined fields. For example the planet template has fields such as periapsis or …
Category: how to Tagged: python wikipedia html data retrieval
Read More
One job incontinuousintegration pipeline (Photo credit: Wikipedia)
The goal is to setup a CI pipeline based on Travis with external dependencies integrated to a Github repository
To enable Travis integration in Github, one must edit ./.travis.yml file.
I won't go into detail. The setup is …
Category: how to Tagged: travis ci how to
Read More
Graph database representation (Photo credit: Wikipedia)
I wish to have reliable data about vehicles. I decided to rely on one large source, namely Wikipedia. I chose it because it is reviewable and most of the time reviewed, and regularly updated and completed.
Wikidata items are made to …
Category: how to Tagged: python wikipedia wikidata html
Read More
Second orderdifferential equation(Photo credit: Wikipedia)
In python, differential equations can be numerically solved thanks to scipy [1]. Is usage is not as intuitive as I expected.
Let's start small. The first equation will be really simple:
Category: maths Tagged: python maths equation
Read More
Zombie favorite food warning (Photo credit: wikipedia)
I recently read a paper [1] trying to model a disease propagation. I wanted to play with this model.
The model is know as "SIR" as it divide the population into 3 groups:
Category: maths Tagged: python maths zombie
Read More
Jupyter and a Python (almost) (Photo credit: Wikipedia)
Following the isolation of python environements and given I use jupyter notebooks, isolating jupyter kernels inside virtualenv is a logical step.
To do so, you must install a new kernel using the ipython you installed inside your virtualenv:
Category: how to Tagged: python tools code
Read More
Virtual environement (Photo credit: wikipedia)
To isolate python developments, I use virtualenv. This allow me to forget about the specific python version used for each project, avoid interferences with the default python installation and between my projects, is relatively light, and may have other advantages I cannot imagine with my …
Category: programming Tagged: python tools code
Read More
Vertical stabilizer (Photo credit: Wikipedia)This post is about yaw control. This is also the post for which I did not find many references.
Remember the yaw is the axis controlled by the rudder. The rudder acts as any foil, providing a force dependant of its angle of attack. This …
Category: aviation Tagged: C star Flight dynamics yaw
Read MoreMy default LaTeX makefile evolved. Here is an update:
The makefile looks like:
LATEX=pdflatex
BIBTEX=bibtex
BIB=
RERUN='(There is undefined reference|Rerun to get (cross-references|the bars) right)'
%.pdf:%.tex
${LATEX} $<
@if [ -e $*.bbl ]; then ${BIBTEX} $* && ${LATEX} $< && ${LATEX} $< ; fi
@if egrep -q $(RERUN) $*.log ; then ${LATEX} $< ; fi
%.aux …Category: tools Tagged: GNU LaTeX Makefile Writing how to tools
Read More