Sat 14 March 2015

Pi Pie (Photo credit: Wikipedia)

On this Pi day , I would like to enumerate all uses of pi I know. There are more ( listed here ):

• The well known mathematical constant , defined as the ratio of a cicle’s cicumference to its diameter and whose decimal are usually computed through infinite …

Category: useless Tagged: Pi Day maths useless

Wed 25 February 2015

[caption id="" align="alignright" width="75" class="zemanta-img"] transformation in progress(Photo credit: Wikipedia)[/caption]

This is an incomplete collection of tools to perform some transformations such from and to HTML, TXT, [latex]LaTeX[/latex] and markdown.

Category: tools Tagged: HTML LaTeX Markdown Plain text how to tools

Sat 31 January 2015

[caption id="" align="alignright" width="350" class="zemanta-img"] pilots' control (Photo credit: Wikipedia)[/caption]

I think I must clarify how do a aircraft fly. First of all, not that an aircraft is a physical object on wich many forces apply. Those forces make it move and rotate. Some of this …

Category: aviation Tagged: Fixed-wing aircraft Flight control surface

Sun 18 January 2015

[caption id="" align="alignright" width="350" class="zemanta-img"] neighbours' discovery (Photo credit: Wikipedia)[/caption]

My server's OS is an Archlinux, and I want to pratic a DHCP server set up both in IP v4 and IPv6

Category: tools Tagged: DHCPv6 Dynamic Host Configuration Protocol IPv6 how to tools

Wed 14 January 2015

[caption id="" align="alignright" width="150" class="zemanta-img"] Je suis Charlie (Photo credit: Wikipedia)[/caption]

Category: reflections Tagged: Reflection

Sat 13 December 2014

[caption id="" align="alignright" width="218" class="zemanta-img"] Laptop problem (Photo credit: Wikipedia)[/caption]

My two problems with my laptop are the following:

1. I want to control the backlight brihtness of my screen even if I don't start the graphical desktop (i.e. work with tty)
2. I want to be …

Category: how to Tagged: ArchLinux Laptop Linux Systemd Udev tools

Mon 27 October 2014

The situation is the following: I need to downgrade the boost package from the version 1.56 to 1.55. The dedicated page on the arch wiki suggest several solutions. The one I chose is using the AUR package downgrader . Its usage is really intuitive:

downgrader -l  <package_name>

Category: how to Tagged: Arch Linux how to tools

Thu 02 October 2014

[caption id="" align="alignright" width="75" class="zemanta-img"] (Photo credit: Wikipedia)[/caption]

Recently, I've encountered an issue using my yahoo openID. This is the standard way I used to log in stackexchange. I don't know where and when was the change made, but it seems I'm not the ony one …

Category: how to Tagged: OpenID Stackexchange

Fri 19 September 2014

[caption id="" align="alignright" width="350"] Birthday candle (Photo credit: Wikipedia)[/caption]

One year ago,  I begun this blog. The first post was about what I expected from the blog. Lets look backward. This blog contains:

• about 60 posts published
• almost all are posts in english
• few posts are in …

Category: blog Tagged: Assessment Birthday Blog

Sun 07 September 2014

The axes is the most documented one. Maybe because it is the less easy to understand. Of course other post will consider the two other axes.

The complication arise when thinking of what can be controlled:

• the plane's stability (called "assiette" in french) and therefore the pitch rate.
• the angle …

Category: aviation Tagged: C star