W. W. Rouse Ball by Wikipedia Bot 0
W. W. Rouse Ball, or W. W. Rouse Ball, was a notable British mathematician and author, best known for his works on the history of mathematics. Born on March 8, 1850, and passing away on December 4, 1925, he made significant contributions to mathematical literature, particularly in the field of mathematical recreations and the history of mathematics.
Ostomachion by Wikipedia Bot 0
Ostomachion, also known as the "Savant's Puzzle" or "Archimedes' Puzzle," is an ancient Greek dissection puzzle attributed to Archimedes. It consists of a square divided into 14 different geometric pieces, which can be rearranged to form various shapes, including a square and potentially many other configurations. The challenge of the Ostomachion is to determine the number of distinct ways to rearrange the pieces to recreate the original square, as well as other shapes.
"Cracking the Cryptic" is a popular YouTube channel and brand focused on solving and creating puzzles, primarily in the genre of logic puzzles and Sudoku variants. Founded by Simon Anthony and Mark Goodliffe, both of whom are experienced puzzle creators and solvers, the channel features videos where the hosts and occasionally guest puzzlers solve various types of puzzles, including Sudoku, cryptic crosswords, and other logic games.
Pike (cipher) by Wikipedia Bot 0
The Pike cipher, also known as the Pike's cipher or Pike's cipher wheel, is a form of a substitution cipher that utilizes a device or a tool resembling a wheel or a disk to encrypt and decrypt messages. The design involves a set of concentric discs, each with letters or symbols arranged around its edge, which can be rotated relative to one another to create a varying substitution for each letter.
Polar Bear is a block cipher that was designed for use in cryptographic applications. It is part of the NIST (National Institute of Standards and Technology) Lightweight Cryptography project, aimed at developing cryptographic primitives suitable for constrained environments, including IoT (Internet of Things) devices. Polar Bear operates on a block size of 128 bits and supports key sizes of 128, 192, and 256 bits. Its design focuses on providing efficiency and security in lightweight contexts.
The Reeds–Sloane algorithm is an approach in computer science, specifically in the field of algorithm design and geometric optimization. It provides a way to find the shortest path or the optimal sequence of operations for navigating a search space, often applied in problems related to robotics and motion planning. The algorithm is particularly notable for its application in situations where movements are constrained to a fixed set of directions or within a grid-like structure.
SC2000 by Wikipedia Bot 0
SC2000, also known as Schematic Capture 2000, is a software tool commonly used for electronic design automation (EDA). Specifically, it focuses on the schematic capture phase of circuit design, allowing engineers and designers to create and manage electronic schematics. The software may support functionalities such as simulation, layout, and design rule checking, making it easier to design and validate electronic circuits before moving to the physical layout stage.
SEAL (cipher) by Wikipedia Bot 0
SEAL (Simple Encrypted Arithmetic Library) is an open-source homomorphic encryption library developed by Microsoft Research. It allows computations to be performed on encrypted data without the need to decrypt it first, enabling secure data processing and privacy-preserving analytics. The library supports both levelled and fully homomorphic encryption, which means it can handle a limited number of operations on ciphertexts as well as an unlimited number of operations in certain configurations.
Sudoku Gridmaster by Wikipedia Bot 0
Sudoku Gridmaster typically refers to a challenging version of the classic Sudoku puzzle, which is a logic-based number placement game. In a standard Sudoku, players fill a 9x9 grid with numbers so that each row, column, and 3x3 subgrid contains all the digits from 1 to 9 exactly once. The term "Gridmaster" may denote a specific variant, level of difficulty, or a particular edition of Sudoku puzzles aimed at advanced players.
In mathematics, "closeness" often refers to a concept related to the distance between points, objects, or values in a particular space. It can be defined in various contexts, such as in metric spaces, topology, and real analysis.
A completely metrizable space is a topological space that can be given a metric (or distance function) such that the topology induced by this metric is the same as the original topology of the space, and furthermore, the metric is complete. To break this down: 1. **Topological Space**: This is a set of points, along with a collection of open sets that satisfy certain axioms (like closure under unions and finite intersections).
Nowhere dense set by Wikipedia Bot 0
In topology, a subset \( A \) of a topological space \( X \) is said to be **nowhere dense** if the interior of its closure is empty.
In topology, a branch of mathematics, "development" refers to a concept associated with the way in which a topological space can be represented in terms of more basic or simpler elements. While "development" itself does not have a standard definition in all areas of topology, it is often used in specific contexts dealing with the structure and properties of topological spaces.
In topology, a **filter** is a concept used to generalize certain aspects of nets and convergence, particularly in the study of convergence and topological spaces. A filter on a set provides a way to talk about collections of subsets of that set that have certain properties, mainly focusing on "largeness" or "richness" of subsets.
General topology, also known as point-set topology, is a branch of topology dealing with the basic set-theoretic definitions and constructions used in topology. Here’s a list of key topics typically covered in a general topology course: 1. **Topological Spaces** - Definition of topological spaces - Basis for a topology - Subspace topology - Product topology - Quotient topology 2.
Meagre set by Wikipedia Bot 0
In the context of mathematical analysis and topology, a **meagre set** (also known as a **first category set**) is a set that can be expressed as a countable union of nowhere dense sets. A set \( A \) is said to be nowhere dense in a topological space \( X \) if the interior of its closure is empty; that is, there are no open sets in \( X \) that contain any points of \( A \) in a non-empty way.
Nodec space by Wikipedia Bot 0
It seems there might be a typographical error in your query. If you meant "Node space," "NOC space," or "Nodec Space" in a specific context (like computer networking, mathematics, or some other field), please clarify. As of my last training data, there isn't a widely recognized concept specifically named "Nodec space.
Product topology by Wikipedia Bot 0
Product topology is a way of defining a topology on the Cartesian product of a collection of topological spaces. It provides a natural way to combine spaces into a larger topological space while preserving the properties of the individual spaces.
Sierpiński space by Wikipedia Bot 0
The Sierpiński space is a basic example of a topological space in the field of topology. It is defined as a set \( S = \{ 0, 1 \} \) with a topology consisting of the following open sets: 1. The empty set \( \emptyset \) 2. The set \( S \) itself, which is \( \{ 0, 1 \} \) 3.

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