Portal:Geometry From Wikipedia, the free encyclopedia Geometry arose as the field of knowledge dealing with spatial relationships. Geometry is one of the two fields of pre-modern mathematics, the other being the study of numbers. In modern times, geometric concepts have been extended. The study of trigonometric functions dates back to Babylonian times, and a considerable amount of fundamental work was done by ancient Greek, Indian and Arab mathematicians. Euclid of Alexandria Euclid (also referred to as Euclid of Alexandria) (Greek: Εὐκλείδης) (c. 325–c. 265 BC), a Greek mathematician, who lived in Alexandria, Hellenistic Egypt, almost certainly during the reign of Ptolemy I (323 BC–283 BC), is often considered to be the "father of geometry". The above shows an example of doubly ruled surface – the hyperboloid of one sheet. Purge server cache
Amateur radio An example of an amateur radio station with four transceivers, amplifiers, and a computer for logging and for digital modes. On the wall are examples of various awards, certificates, and a reception report card (QSL card) from a foreign amateur station. Amateur radio (also called ham radio) is the use of designated radio frequency spectra for purposes of private recreation, non-commercial exchange of messages, wireless experimentation, self-training, and emergency communication. The amateur radio service (amateur service and amateur satellite service) is established by the International Telecommunication Union (ITU) through the International Telecommunication Regulations. Amateur radio is officially represented and coordinated by the International Amateur Radio Union (IARU), which is organized in three regions and has as its members the national amateur radio societies which exist in most countries. History[edit] An amateur radio station in the United Kingdom. Ham radio[edit]
Portal:Epistemology According to Plato, knowledge is a subset of that which is both true and believed Epistemology or theory of knowledge is the branch of philosophy that studies the nature, methods, limitations, and validity of knowledge and belief. The term "epistemology" is based on the Greek words "επιστήμη or episteme" (knowledge or science) and "λόγος or logos" (account/explanation). Much of the debate in this field has focused on analyzing the nature of knowledge and how it relates to similar notions such as truth, belief, and justification. In epistemology and in its modern sense, rationalism is "any view appealing to reason as a source of knowledge or justification" (Lacey 286). Robert Nozick (November 16, 1938 – January 23, 2002) was an American philosopher and Pellegrino University Professor at Harvard University. ... that naïve realism is the most accepted epistemological theory held around the world?
Yaws (web server) Because Yaws uses Erlang's lightweight threading system, it performs well under high concurrency. A load test conducted in 2002 comparing Yaws and Apache found that with the hardware tested, Apache 2.0.39 with the worker MPM failed at 4,000 concurrent connections, while Yaws continued functioning with over 80,000 concurrent connections.[2] Official websiteInterview with YAWS developer Claes Klacke Wikstrom (OGG or MP3)ErlyWeb – MVC-pattern web framework for YawsErlang Web – MVC-pattern web framework Yaws and Inets Erlang/OTP applicationNitrogen – An event-driven Web 2.0 framework for Erlang that runs on Yaws, Mochiweb, and Inets Portal:Logic From Wikipedia, the free encyclopedia As a formal science, logic investigates and classifies the structure of statements and arguments, both through the study of formal systems of inference and through the study of arguments in natural language. The field of logic ranges from core topics such as the study of fallacies and paradoxes, to specialized analysis of reasoning using probability and to arguments involving causality. Logic is also commonly used today in argumentation theory. [1] The history of logic is the study of the development of the science of valid inference (logic). While many cultures have employed intricate systems of reasoning, and logical methods are evident in all human thought, an explicit analysis of the principles of reasoning was developed only in three traditions: those of China, India, and Greece. Logic was known as 'dialectic' or 'analytic' in Ancient Greece. Jump up ^ J. Purge server cache
Solution stack In computing, a solution stack is a set of software subsystems or components needed to perform a task without further external dependencies. For example, to develop a web application, the designer needs to use an operating system, web server, database, and programming language. Another version of a solution stack is operating system, middleware, database, and applications.[1] Linux-based solution stacks[edit] Linux (the operating system) Apache (the web server) MySQL or MariaDB (the database management systems) Linux (operating system) Apache (web server) Seaside (web framework) Smalltalk (programming language) The cloud stack of LEAP for: AppScale (Cloud computing-framework and free and open-source alternative to Google App Engine), OpenStack Linux – OpenStack controller nodes run exclusively on Linux OpenStack – providing an infrastructure as a service (IaaS) Ganeti Xen or KVM (hypervisor) Distributed Replicated Block Device (storage replication) Ganeti (virtual machine cluster management tool) Node.js
Portal:Topology From Wikipedia, the free encyclopedia Topology (Greek topos, "place," and logos, "study") is a branch of mathematics that is an extension of geometry. Topology begins with a consideration of the nature of space, investigating both its fine structure and its global structure. Topology builds on set theory, considering both sets of points and families of sets. When the discipline was first properly founded, toward the end of the 19th century, it was called geometria situs (Latin geometry of place) and analysis situs (Latin analysis of place). Informally speaking, a graph is a set of objects called points, nodes, or vertices connected by links called lines or edges. Purge server cache
Simple Authentication and Security Layer Simple Authentication and Security Layer (SASL) is a framework for authentication and data security in Internet protocols. It decouples authentication mechanisms from application protocols, in theory allowing any authentication mechanism supported by SASL to be used in any application protocol that uses SASL. Authentication mechanisms can also support proxy authorization, a facility allowing one user to assume the identity of another. SASL is an IETF Standard Track protocol and is, as of 2010[update], a Proposed Standard. SASL mechanisms[edit] A SASL mechanism implements a series of challenges and responses. "EXTERNAL", where authentication is implicit in the context (e.g., for protocols already using IPsec or TLS)"ANONYMOUS", for unauthenticated guest access"PLAIN", a simple cleartext password mechanism." The GS2 family of mechanisms supports arbitrary GSS-API mechanisms in SASL.[5] It is now standardized as RFC 5801. SASL-aware application protocols[edit] See also[edit] References[edit]
Portal:Analysis Analysis is the process of breaking a complex topic or substance into smaller parts to gain a better understanding of it. The technique has been applied in the study of mathematics and logic since before Aristotle, though analysis as a formal concept is a relatively recent development. As a formal concept, the method has variously been ascribed to Ibn al-Haytham, Descartes (Discourse on the Method), Galileo, and Newton, as a practical method of physical discovery. The derivative of a function at a chosen input value describes the best linear approximation of the function near that input value. For a real-valued function of a single real variable, the derivative at a point equals the slope of the tangent line to the graph of the function at that point. In higher dimensions, the derivative of a function at a point is a linear transformation called the linearization.[1].
ScreenPlay The MediaWiki ScreenPlay Extension (ScreenPlay) is a text-formatting add-on which allows screenwriters and hobbyists the ability to use MediaWiki as a screenwriting tool. Synopsis[edit | edit source] <screenplay>An example is described</screenplay><scene int day>A '''Darkened''' Room</scene> [[Bob Ross|BOB]] sits in front of a computer screen. ;bob :Hello friends, I'm so glad you could join us. We're gonna make a happy little program today. ;voice :(offstage) :Oh goodie! Will produce the following type of formatting: Note how word case has been adjusted in certain cases. Description[edit | edit source] ScreenPlay supports three new editing hooks to add style codes that visually re-format certain wiki syntax (specifically, those used for definition lists, or "dl's") into proper screenplay format. Though ScreenPlay is not a replacement for a full-featured ScreenWriting software package, it offers a number of advantages for screenwriters: Usage[edit | edit source] Hooks[edit | edit source]