A quasi-homogeneous polynomial is a type of polynomial that exhibits a certain kind of symmetry in terms of its variable degrees. Specifically, a polynomial \( f(x_1, x_2, \ldots, x_n) \) is called quasi-homogeneous of degree \( d \) if it can be expressed as a sum of terms, each of which has the same "weighted degree".
Electrical telegraph by Ciro Santilli 37 Updated +Created
Stanley decomposition is a concept related to combinatorial geometry and enumerative combinatorics, specifically in the context of polyhedral combinatorics. It is named after Richard P. Stanley, a prominent mathematician who has made significant contributions to these fields. The Stanley decomposition provides a way to express a polyhedron, especially a convex polytope, as a combination of combinatorial objects, typically through the use of face lattices.
How the telephone works by Ciro Santilli 37 Updated +Created
Video 1.
Phone Intercom by Make (2014)
Source. This video illustrates will the incredible simplicity of the connection of a telephone system. Compare that to the relative complexity of wireless communication, which requires modulation.
Video 2.
Making a Microphone Work with an Oscilloscope by Environmental Radiation LLC (2012)
Source. Not the most detailed setup, but good.
Weierstrass ring by Wikipedia Bot 0
In algebraic geometry and commutative algebra, a Weierstrass ring is a type of local ring that can be used to study singularities of algebraic varieties. More specifically, it is a particular kind of ring that arises in the context of the Weierstrass preparation theorem. A Weierstrass ring is defined as follows: 1. **Local Ring**: It is a local ring, which means it has a unique maximal ideal.
Group theory by Wikipedia Bot 0
Group theory is a branch of mathematics that studies algebraic structures known as groups. A group is defined as a set equipped with a single binary operation that satisfies four fundamental properties: 1. **Closure**: If \( a \) and \( b \) are elements of the group, then the result of the operation \( a * b \) is also in the group.
Voice over IP by Ciro Santilli 37 Updated +Created
Lysergic acid diethylamide by Ciro Santilli 37 Updated +Created
Amplitude modulation by Ciro Santilli 37 Updated +Created
The Price of Anarchy (PoA) is a concept from game theory, particularly in the context of auctions and other competitive scenarios. It measures how the efficiency of a given outcome in a strategic game (where players act out of self-interest) compares to the optimal outcome that could be achieved if all players acted in a cooperative manner.
Win rate by Wikipedia Bot 0
Win rate is a metric commonly used in various fields such as gaming, sports, finance, and business to quantify the percentage of wins relative to the total number of attempts or events.
Barga Jazz by Wikipedia Bot 0
Barga Jazz is an annual jazz festival that takes place in the town of Barga, located in the Tuscany region of Italy. This festival is known for its picturesque setting and its celebration of jazz music, attracting both local and international artists. It typically features a variety of performances, including concerts, jam sessions, and workshops, catering to jazz enthusiasts and musicians of all levels.
Derek Barton by Wikipedia Bot 0
Derek Barton was a notable British chemist, best known for his work in the field of organic chemistry and his contributions to the understanding of molecular conformations and stereochemistry. Born on September 8, 1918, Barton made significant advancements in the study of conformational analysis, particularly with the introduction of the concept of "conformational energy," which helped explain how the three-dimensional shape of molecules affects their chemical behavior.
Scriptorium by Ciro Santilli 37 Updated +Created
Game artificial intelligence (AI) refers to the techniques and methods used to create responsive, adaptive, and intelligent behavior in non-player characters (NPCs) or game elements within video games. The primary goal of game AI is to enhance the player experience by making the game world more immersive, challenging, and engaging. Here are some key aspects of game AI: 1. **Pathfinding:** - Game AI often involves pathfinding algorithms that help characters navigate the game world efficiently.

Pinned article: ourbigbook/introduction-to-the-ourbigbook-project

Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
We have two killer features:
  1. topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculus
    Articles of different users are sorted by upvote within each article page. This feature is a bit like:
    • a Wikipedia where each user can have their own version of each article
    • a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
    This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
    Figure 1.
    Screenshot of the "Derivative" topic page
    . View it live at: ourbigbook.com/go/topic/derivative
  2. local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:
    This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
    Figure 5. . You can also edit articles on the Web editor without installing anything locally.
    Video 3.
    Edit locally and publish demo
    . Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension.
  3. https://raw.githubusercontent.com/ourbigbook/ourbigbook-media/master/feature/x/hilbert-space-arrow.png
  4. Infinitely deep tables of contents:
    Figure 6.
    Dynamic article tree with infinitely deep table of contents
    .
    Descendant pages can also show up as toplevel e.g.: ourbigbook.com/cirosantilli/chordate-subclade
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact