Differential geometry Updated 2025-07-16
Bibliography:
- maths-people.anu.edu.au/~andrews/DG/ Lectures on Differential Geometry by Ben Andrews
Tesselation Updated 2025-07-16
Balance of power Updated 2025-07-16
Nash equilibrium Updated 2025-07-16
The best example to look at first is the penalty kick left right Nash equilibrium.
Then, a much more interesting example is choosing a deck of a TCG competition: Magic: The Gathering meta-based deck choice is a bimatrix game, which is the exact same, but each player has N choices rather than 2.
The next case that should be analyzed is the prisoner's dilemma.
The key idea is that:
- imagine that the game will be played many times between two players
- if one player always chooses one deck, the other player will adapt by choosing the anti-deck
- therefore, the best strategy for both players, is to pick decks randomly, each with a certain probability. This type of probabilistic approach is called a mixed strategy
- if any player deviates from the equilibrium probability, then the other player can add more of the anti-deck to the deck that the other player deviated, and gain an edgeTherefore, using equilibrium probabilities is the optimal way to play
Tit for tat Updated 2025-07-16
Related ideas:
Board game Updated 2025-07-16
Hand game Updated 2025-07-16
Meta (game) Updated 2025-07-16
The meta of a game is the currently dominating know strategy or set of strategies, see also Section "Nash equilibrium".
Serious game Updated 2025-07-16
Video game Updated 2025-07-16
Ciro Santilli used to play video games when he was young. But after he reached 18 he got bored of them.
The problem is that no matter how you look at, the how to become famous in the real world game is just always more interesting and fulfilling.
Therefore adult Ciro enjoys only the following types of video game content in video form, so that other people waste their lives playing the games while you only see the highlights:
- speedrunning, including:
- tool-assisted speedrun, Ciro's favorite by far
- real-time attack speedrun
- meta breaking glitches, including in speedrunning and on PvP-games.
- Magic: The Gathering
- Video game reviews
The aspect Ciro enjoys about non-PvP games is atmosphere. Not as conveyed by useless story telling, but as conveyed by music and graphics, and the context deep idea. Legend of Zelda and Metroid come to mind.
And too many games commit the sins of dependency of dexterity, no save states, how do I skip this boring part, or jump straight to the beautiful one?
Another important point is; the perfect video game is an infinitely hard one.
It also doesn't help if you are already typing on a computer all day long on your job. Hands get tired. Eyes have an infinite capacity to consume useless YouTube videos however. Medically proved.
As a result, Ciro just watches videos about video games. Notably games he played when he was a teenager and already understand the rules for.
And things got even worse as after Ciro Santilli's Open Source Enlightenment, and he started to feel bad about playing any game that is not open source.
Supercut of Doug S02E13 "Doug's Lost Weekend" (1992)
Source. Ciro Santilli used to watch Doug as kid. Of all the episodes, only this one stuck to his mind as an adult. It really drove the point home. The pain and joy of being addicted to anything really. Thankfully wheneve Ciro got addicted to a video game, he also quickly got tired of it. His last temporary addiction episode as of 2022 was Cataclysm DDA!
It is also so awesome how the episode pictures Dougs imagination while playing the video game, which is much more realistic than the actual crude graphics. The Nintendo hard reference is also clear.
Another great point of the episode is how good it is to play a single player video game taking turns with a friend on your side. Both people have to be fully engaged, and the game has to be hard. Perhaps those days are over now that everyone has their own computer and can each play together... and that is a huge shame. When playing on the couch with a friend, the one who is not playing can act as a copilot and thing more broadly as the other focuses on more specific details of execution. One is also reminded of pair programming.
Another great point is, partially when you are addicted, to play the video game at night until late, or very early in the morning. Ciro has fantastic memories of playing Zelda on the Nintendo 64 on Sunday mornings, or his emulation experiences from late weekend evenings at university: Video "Samba e Amor by Caetano Veloso (1975)".
The followup lucky hat segment is also amazing: doug.fandom.com/wiki/Doug%27s_Lucky_Hat
Cauchy's functional equation Updated 2025-07-16
Nice result on Lebesgue measurable required for uniqueness.
Proof assistant Updated 2026-06-14
Much of this section will be dumped at Section "Website front-end for a mathematical formal proof system" instead.
Formal proof Updated 2025-07-16
A proof in some system for the formalization of mathematics.
Set (mathematics) Updated 2025-07-16
Intuitively: unordered container where all the values are unique, just like C++
std::set.More precisely for set theory formalization of mathematics:
- everything is a set, including the elements of sets
- string manipulation wise:
Function (mathematics) Updated 2025-07-16
Set of ordered pairs. That's it! This is illustrated at: math.stackexchange.com/questions/1480651/is-fx-x-1-x-2-a-function/1481099#1481099
Function space Updated 2025-07-16
Number Updated 2025-07-16
Complex number Updated 2025-07-16
Forms both a:
- division algebra if thought of with complex multiplication as the bilinear map of the algebra
- field
Ordered pair Updated 2025-07-16
Sets are unordered, but we can use them to create ordered objects, which are of fundamental importance. Notably, they are used in the definition of functions.
Logic Updated 2025-07-16
There are unlisted articles, also show them or only show them.
