Bilinear map Updated 2025-07-16
Linear map of two variables.
More formally, given 3 vector spaces X, Y, Z over a single field, a bilinear map is a function from:
that is linear on the first two arguments from X and Y, i.e.:
Note that the definition only makes sense if all three vector spaces are over the same field, because linearity can mix up each of them.
The most important example by far is the dot product from , which is more specifically also a symmetric bilinear form.
Bill Gates Updated 2025-07-16
The enemy?
It does not matter how many trillions you donate to charity, Bill. If you want to prove your point, make MS Word free and open source and port it to Linux. And then Window implements POSIX-compatible APIs and then deprecate non-POSIX APIs.
Video 1.
Bill Gates Jumps Over Chair
. Source.
Bill Haydon Updated 2025-07-16
Figure 1.
Bill Haydon played by Ian Richardson in the 1979 Tinker Tailor Soldier Spy (TV series)
Figure 2.
Bill Haydon played by Colin Firth in the 2011 Tinker Tailor Soldier Spy (film)
Bill Nye Updated 2025-07-16
Maybe we need these people, maybe we do.
The problem as with many well known science communicators is that he falls too much on the basic side of the the missing link between basic and advanced.
Video 1.
Bill Nye isn't really a Scientist (& why that shouldn't matter) by BobbyBroccoli (2017)
Source. Bobby's personal overview of Bill's carrier.
Binet (École Polytechnique) Updated 2025-07-16
TODO is there a publicly visible list?
Function by signature Updated 2025-07-16
In this section we classify some functions by the type of inputs and outputs they take and produce.
Oxford physics course handbook Updated 2025-07-16
The normal navigation to them was paywalled, but the static files are served without login checks if you know their URL. One way to go about it is to search by prefix on the Wayback Machine: web.archive.org/web/*/https://www2.physics.ox.ac.uk/sites/default/files/contentblock/2011/06/03/*
The last handbooks we can find are 2020/2021, they might have move to a new more properly paywalled location after that year.
Perturbation theory Updated 2025-07-16
Used a lot in quantum mechanics, where the equations are really hard to solve. There's even a dedicated wiki page for it: en.wikipedia.org/wiki/Perturbation_theory_(quantum_mechanics). Notably, Feynman diagrams are a way to represent perturbation calculations in quantum field theory.
Let's gather some of the best results we come across here:
Braindumping Updated 2025-07-16
There are two ways:
BrainSimII Updated 2025-07-16
The video from futureai.guru/technologies/brian-simulator-ii-open-source-agi-toolkit/ shows a demo of the possibly non open source version. They have a GUI neuron viewer and editor, which is kind of cool.
Video 1.
Machine Learning Is Not Like Your Brain by Charles Simon (2022)
Source.

There are unlisted articles, also show them or only show them.