Marijuana by Ciro Santilli 35 Updated +Created
Bernstein-Vazirani algorithm by Ciro Santilli 35 Updated +Created
Toy/test/tought experiment algorithm.
ITER by Ciro Santilli 35 Updated +Created
Pidgin (software) by Ciro Santilli 35 Updated +Created
WhatsApp by Ciro Santilli 35 Updated +Created
They've had a few breaches: www.whatsapp.com/security/advisories/
Video 1.
WhatsApp founder Jan Koum talks about their Journey by Roots (2017)
Source. Good talk, explains how everything happened in the perfect location at the perfect time: unemployed people who knew how to code, bought an iPhone, the next big platform, at its very beginning, they had just release the required push notifications API, and he travelled a lot and knew how much SMS sucked, especially international.
United States diplomatic cables leak by Ciro Santilli 35 Updated +Created
Oxford Brookes University by Ciro Santilli 35 Updated +Created
University of Sussex by Ciro Santilli 35 Updated +Created
Linux kernel by Ciro Santilli 35 Updated +Created
Critical path by Ciro Santilli 35 Updated +Created
Terrell rotation by Ciro Santilli 35 Updated +Created
What you would see the moving rod look like on a photo of a length contraction experiment, as opposed as using two locally measured separate spacetime events to measure its length.
Great doubt by Ciro Santilli 35 Updated +Created
The type of feeling of confusion and distrut for your sense that some Koans attempt to instill.
Ciro Santilli's preferred version of it is physics and the illusion of life.
Some notable references:
JavaScript is single threaded by Ciro Santilli 35 Updated +Created
Universal Module Definition by Ciro Santilli 35 Updated +Created
Since JavaScript devs are incapable of defining an unified import standard, this design pattern emerged where you just check every magic global one by one. Here's a demo where a Js library works on both the browser and from Node.js:
Riseup by Ciro Santilli 35 Updated +Created
Intel GPU by Ciro Santilli 35 Updated +Created
Rotate object around a point in Inkscape by Ciro Santilli 35 Updated +Created
There's a tiny little crosshair that you can drag around to set the center of rotation.
Definition of the indefinite orthogonal group by Ciro Santilli 35 Updated +Created
Given a matrix with metric signature containing positive and negative entries, the indefinite orthogonal group is the set of all matrices that preserve the associated bilinear form, i.e.:
Note that if , we just have the standard dot product, and that subcase corresponds to the following definition of the orthogonal group: Section "The orthogonal group is the group of all matrices that preserve the dot product".
As shown at all indefinite orthogonal groups of matrices of equal metric signature are isomorphic, due to the Sylvester's law of inertia, only the metric signature of matters. E.g., if we take two different matrices with the same metric signature such as:
and:
both produce isomorphic spaces. So it is customary to just always pick the matrix with only +1 and -1 as entries.

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