Buffon's noodle is a problem in geometric probability that involves dropping a noodle (or a long, thin stick) on a plane with parallel lines drawn on it and calculating the probability that the noodle will cross one of the lines. This problem was first posed by the French mathematician Georges-Louis Leclerc, Comte de Buffon, in the 18th century.
The Borell–Brascamp–Lieb (BBL) inequality is a result in the field of measure theory and functional analysis, particularly in the study of convex functions and their relationships to volume measures and integrals. It generalizes several well-known inequalities, including the Brunn-Minkowski inequality. The inequality provides a way to compare the integrals of convex functions with respect to measures that are related through certain kinds of convex combinations.
The expression "−1" represents the negative number one. In mathematics, it is used to indicate the opposite of one on the number line. This means that it is one unit to the left of zero. The concept of negative numbers is fundamental in mathematics and is used in various applications, including algebra, calculus, and real-world situations like temperature measurements below freezing or financial debts.
A **repunit** is a type of number that consists entirely of the digit 1 repeated one or more times. The term "repunit" comes from "repeated unit.
A quadratic integer is a type of algebraic integer that is a root of a monic polynomial of degree two with integer coefficients. In simpler terms, a quadratic integer can be expressed in the form \( a + b\sqrt{d} \), where \( a \) and \( b \) are integers, and \( d \) is a square-free integer (i.e., \( d \) is not divisible by the square of any prime).
The term "power of three" can refer to a couple of different concepts depending on the context: 1. **Mathematical Context**: In mathematics, a power of three refers to any number that can be expressed as \(3^n\), where \(n\) is an integer.
Plato's number refers to the number of faces on the Platonic solids, which are the five regular polyhedra that have identical faces of congruent polygons. Specifically, Plato's number is traditionally associated with the number **5**, which corresponds to the five Platonic solids: 1. Tetrahedron (4 faces) 2. Cube (6 faces) 3. Octahedron (8 faces) 4. Dodecahedron (12 faces) 5.
The number 0 in English is commonly referred to as "zero." Other terms that can be used include "naught," "nil," and "nothing.
The number 0 can be referred to by various names and terms in different contexts: 1. **Zero** - The most common name. 2. **Naught** - Often used in mathematical contexts or when referring to a value of nothing. 3. **Nil** - Commonly used in sports or informal contexts to mean zero, particularly in scores. 4. **Null** - Used in programming and database terminology to denote a lack of value or a non-existent object.
"Myriad" can refer to several different things depending on the context. Here are a few possibilities: 1. **General Meaning**: In its most basic sense, "myriad" means a countless or extremely great number. It is often used to describe a large variety of something. 2. **Myriad Genetics**: This is a biotechnology company that focuses on genetic testing and precision medicine. It offers tests for various conditions, including cancer, and provides information that aids in treatment decisions.
Legendre's constant, denoted as \(L\), is a constant related to the distribution of prime numbers. It is defined in the context of the function that gives the number of primes less than or equal to a given integer \(n\). In particular, Legendre's constant can be expressed in terms of the prime counting function \(\pi(n)\), which counts the number of primes less than or equal to \(n\).
The Interesting Number Paradox is a thought experiment and a fun example in the realm of mathematics and philosophy regarding the nature of "interesting" numbers. It essentially poses the following problem: 1. Every natural number is either interesting or uninteresting. 2. If a number is uninteresting, then it can be made interesting by simply stating that it is "the smallest uninteresting number.
An **integer literal** is a notation for representing a fixed value of an integer in programming languages. It's a way to specify integer constants directly within the code. Integer literals can appear in different forms depending on the language and the notation being used. The basic forms of integer literals include: 1. **Decimal literals**: These are numbers expressed in base 10. For example, `42` and `-7` are decimal integer literals.
An integer is a whole number that can be positive, negative, or zero. Integers do not include fractions, decimals, or any non-whole numeric values. The set of integers is typically represented by the symbol **ℤ** and includes numbers such as: - Positive integers: 1, 2, 3, ... - Zero: 0 - Negative integers: -1, -2, -3, ...
The term "gross" can refer to different meanings depending on the context, but it is often used in a few specific ways: 1. **Gross Weight**: This refers to the total weight of an item including its packaging or container. It is commonly used in shipping and logistics to determine the total weight of goods being transported.
Graham's number is a famously large number named after mathematician Ronald Graham, and it arises in the context of a problem in Ramsey theory. It is so large that conventional notation, including powers and even tower exponents, cannot effectively express its size. Instead, it is defined using a special notation called Knuth's up-arrow notation.
A googol is a mathematical term that represents a very large number: \( 10^{100} \), or 1 followed by 100 zeros. It was first introduced by the mathematician Edward Kasner in the 1930s, and the name was suggested by his nine-year-old nephew, Milton Sirotta.
A "dozen" is a term that refers to a quantity of twelve (12) items. It is commonly used in various contexts, such as counting objects, selling goods (like eggs or baked goods), and more. The term has its origins in the Latin word "duodecim," which means twelve.
The digital sum of a number in base \( b \) refers to the sum of its digits when the number is expressed in that base. This concept is similar to finding the digit sum in base 10, but the digits are calculated according to the specified base. For example, let's say we want to calculate the digital sum of the number 345 in base 10.
The term "digital sum" can refer to different concepts depending on the context, but it typically involves the process of summing the digits of a number until a single-digit result is obtained. This process is often used in various mathematical contexts, such as number theory or checksum calculations.

Pinned article: 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