Quartic reciprocity is a concept in number theory that extends the ideas of quadratic reciprocity to higher powers, specifically to quartic residues. Just as quadratic reciprocity provides conditions under which two primes can be classified as quadratic residues or non-residues, quartic reciprocity deals with congruences of the form \(x^4 \equiv a \mod p\).
Lists of tropical cyclones refer to organized compilations of storms that have formed in tropical and subtropical regions around the world. These lists typically include information such as the name of the cyclone, its formation and dissipation dates, intensity, impacts, and areas affected by the storm. Tropical cyclones are classified as hurricanes, typhoons, or simply tropical storms depending on their location and intensity.
A sequence covering map is a mathematical concept often found in the field of topology and algebraic topology. It is related to the study of covering spaces and can be understood in the context of sequences of spaces or topological maps.
The Schwartz–Bruhat function, often simply referred to as the Schwartz function, is a type of smooth function that is rapidly decreasing. Specifically, it belongs to the space of smooth functions that decay faster than any polynomial as one approaches infinity. This type of function is especially important in various areas of analysis, particularly in the fields of distribution theory, Fourier analysis, and partial differential equations.
The Calcutta auction is a unique bidding process typically used in various contexts, such as fundraising, sports events, and even real estate. Its name originates from the city of Kolkata (formerly Calcutta) in India. In a Calcutta auction, participants bid on a particular item or lot, but the twist is that the highest bidder wins the right to "own" that item, and then they typically have a chance to profit from it, often sharing the proceeds with others involved in the auction.
Replay review is a process used in various sports to review specific plays or calls made by officials during a game. The objective is to ensure accuracy and fairness in officiating by allowing referees or umpires to consult video footage of the play in question. This can help to correct any mistakes related to scoring plays, player eligibility, and certain game-changing decisions. The specific rules and implementation of replay review can vary by sport.
Medical illustration is a specialized field that combines art and science to create visual representations of medical and biological subjects. These illustrations can include detailed images of anatomy, surgical procedures, and various medical concepts. Medical illustrators play a crucial role in educating healthcare professionals, patients, and the general public by providing clear and accurate visuals that can enhance understanding of complex medical information.
The great ditrigonal dodecacronic hexecontahedron is a complex geometric shape known as a polyhedron. It belongs to the category of Archimedean solids, which are a class of convex polytopes with regular polygons as faces. More specifically, it is a type of uniform polyhedron characterized by its symmetrical properties and uniform vertex configuration.
A hexagonal pyramid is a three-dimensional geometric shape characterized by a hexagonal base and six triangular faces that converge at a single apex (the top vertex). ### Key Features of a Hexagonal Pyramid: 1. **Base**: The base is a hexagon, a polygon with six sides and six vertices. 2. **Faces**: There are six triangular faces, each connecting one edge of the hexagon to the apex.
The snub icosidodecadodecahedron is a fascinating geometric shape that belongs to the category of Archimedean solids. It is a complex polyhedron characterized by its unique combination of faces, vertices, and edges. ### Key Features: - **Faces**: The snub icosidodecadodecahedron has 62 faces, 12 of which are regular pentagons and 50 are equilateral triangles.
The truncated square antiprism is a type of convex polyhedron that belongs to the family of Archimedean solids. It can be described as a modification of the square antiprism, which is an 8-faced solid formed by two square bases that are connected by eight triangular lateral faces. In the truncated version, each of the vertices of the square antiprism is truncated (or cut off), resulting in additional faces.
The Klyne–Prelog system, also known as the Klyne–Prelog priority rules, is a method for specifying and designating the absolute configuration of chiral molecules, particularly in stereochemistry. This system is often used to assign the configuration of stereocenters in organic compounds, particularly for molecules with multiple stereogenic centers.
Ice class refers to a classification system used to denote the capability of ships, vessels, or offshore structures to navigate in icy or frozen waters. These classifications ensure that ships are designed and built to withstand the conditions and challenges posed by ice, including ice thickness, density, and the potential for ice loads. The ice class designation is typically part of a broader classification system established by classification societies, which assess and certify the safety and performance of marine vessels.
Serial numbers are unique identifiers assigned to individual items, products, or pieces of equipment. They serve several purposes, including: 1. **Identification**: Serial numbers help differentiate one item from another, even if they are of the same model or make. This is particularly useful in inventory management and quality control. 2. **Tracking**: Manufacturers and retailers can track the production, sale, and ownership of an item over its lifecycle. This can be helpful for warranty claims, recalls, and service history.
The Vertex Enumeration Problem is a fundamental problem in computational geometry and combinatorial optimization. It involves finding all vertices (or corner points) of a convex polytope defined by a set of linear inequalities or a set of vertices and edges.
The Herglotz–Zagier function is a complex analytic function that arises in the context of number theory and several areas of mathematical analysis. This function is typically expressed in terms of an infinite series and is significant due to its properties related to modular forms and other areas of mathematical research.
Mnëv's universality theorem is a result in the field of mathematical logic and combinatorial geometry, specifically relating to the arrangement and properties of arrangements of points in the projective plane. It asserts that certain geometric configurations can be used to describe and encode a broad class of mathematical structures. The theorem indicates that the space of geometric configurations — particularly those involving points and lines in a projective space — is rich enough to capture the complexity of various combinatorial and algebraic structures.
Lenz's law is a principle in electromagnetism that describes the direction of induced electric current in a conductor due to a changing magnetic field. Formulated by Heinrich Lenz in 1834, the law states that the direction of the induced current will be such that it opposes the change in magnetic flux that produced it. In simpler terms, if a magnetic field through a loop of wire increases, the induced current will flow in a direction that creates a magnetic field opposing the increase.
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!
Intro to OurBigBook
. Source. We have two killer features:
- 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-calculusArticles 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/derivativeVideo 2. OurBigBook Web topics demo. Source. - 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.
- to OurBigBook.com to get awesome multi-user features like topics and likes
- as HTML files to a static website, which you can host yourself for free on many external providers like GitHub Pages, and remain in full control
Figure 2. You can publish local OurBigBook lightweight markup files to either OurBigBook.com or as a static website.Figure 3. Visual Studio Code extension installation.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. - Infinitely deep tables of contents:
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