• In mathematics, a π-system (or pi-system) on a set Ω {\displaystyle \Omega } is a collection P {\displaystyle P} of certain subsets of Ω , {\displaystyle...
    16 KB (2,898 words) - 21:20, 22 May 2024
  • Thumbnail for Raspberry Pi
    Raspberry Pi (/paɪ/ PY) is a series of small single-board computers (SBCs) developed in the United Kingdom by the Raspberry Pi Foundation in collaboration...
    112 KB (10,513 words) - 00:08, 11 June 2025
  • Thumbnail for Pi-hole
    and mobile operating system advertisements. It can also be configured to block specific websites, or apply parental controls. The Pi-hole project was created...
    9 KB (894 words) - 22:40, 19 February 2025
  • Thumbnail for IBM System/4 Pi
    The IBM System/4 Pi is a family of avionics computers used, in various versions, on the F-15 Eagle fighter, E-3 Sentry AWACS, Harpoon Missile, NASA's...
    15 KB (1,611 words) - 21:40, 6 June 2025
  • Thumbnail for Chromophore
    molecule will form a pi-bond, three or more adjacent p-orbitals in a molecule can form a conjugated pi-system. In a conjugated pi-system, electrons are able...
    11 KB (1,111 words) - 06:07, 5 May 2025
  • Thumbnail for Raspberry Pi OS
    Raspberry Pi OS is a Unix-like operating system developed for the Raspberry Pi line of single-board computers. It is based on Debian, a Linux distribution...
    24 KB (1,656 words) - 06:09, 11 June 2025
  • Thumbnail for Conjugated system
    of the molecule is separated from the π system (or systems) of the molecule (see the article on the sigma-pi and equivalent-orbital models for this model...
    35 KB (4,303 words) - 09:26, 15 May 2025
  • Thumbnail for Orange Pi
    specifications of Orange Pi boards vary between models. Orange Pi OS, based on Arch Linux, is the officially supported operating system for Orange Pi boards. However...
    10 KB (613 words) - 01:37, 5 June 2025
  • IPA: [p]. In the system of Greek numerals it has a value of 80. It was derived from the Phoenician letter Pe (). Letters that arose from pi include Latin...
    12 KB (1,252 words) - 16:35, 31 May 2025
  • resonance. Such activating groups donate those unshared electrons to the pi system, creating a negative charge on the ortho and para positions. These positions...
    18 KB (2,172 words) - 15:12, 1 June 2025
  • Thumbnail for Banana Pi
    can run on a variety of operating systems, including Android, Ubuntu, Debian, and Raspberry Pi OS. Neither Banana Pi nor Shenzhen SINOVOIP Company has...
    12 KB (1,327 words) - 04:20, 28 February 2025
  • Look up PI in Wiktionary, the free dictionary. PI may refer to: Politically Incorrect (blog), a German political blog Seattle Post-Intelligencer or P-I...
    4 KB (501 words) - 13:25, 25 December 2024
  • Thumbnail for Raspberry Pi 4
    significant upgrades over its predecessor. At its core, the Pi 4 features a new Broadcom BCM2711 system-on-chip, which has a 64-bit ARM Cortex-A72 CPU and a...
    15 KB (1,675 words) - 23:05, 3 June 2025
  • reaction in which a sigma bond moves across a conjugated pi system with a concomitant shift in the pi bonds. The shift in the sigma bond may be antarafacial...
    10 KB (1,343 words) - 18:11, 14 December 2024
  • Thumbnail for OSIsoft
    manufacturer of application software for real-time data management, called the PI System. Founded in 1980, OSIsoft was privately held and headquartered in San...
    4 KB (210 words) - 20:33, 21 January 2025
  • The number π (/paɪ/ ; spelled out as pi) is a mathematical constant, approximately equal to 3.14159, that is the ratio of a circle's circumference to its...
    147 KB (17,245 words) - 19:46, 8 June 2025
  • Twister OS (category Raspberry Pi)
    Twister OS is a Linux-based operating system developed by Pi Labs for the Raspberry Pi series of single-board computers. A version for x86-64-based personal...
    5 KB (462 words) - 22:43, 3 June 2025
  • intensity of absorption. If these groups are in direct conjugation with the pi-system of the chromophore, they may increase the wavelength at which the light...
    5 KB (597 words) - 08:56, 27 September 2024
  • Thumbnail for Arenium ion
    delocalization: the positive charge is delocalized over 3 carbon atoms by the pi system, as depicted on the following resonance structures: A complexed electrophile...
    4 KB (494 words) - 08:04, 24 May 2025
  • or disrotation using the set of rules: how many electrons are in the pi-system and whether the reaction is induced by heat or by light. This set of rules...
    4 KB (449 words) - 18:33, 14 October 2024
  • Magnum, P.I. is an American crime drama television series starring Tom Selleck as Thomas Magnum, a private investigator in Hawaii. The series ran on CBS...
    99 KB (242 words) - 23:20, 10 June 2025
  • Cycloaddition is a type of cycloaddition between a six-atom pi system and a four-atom pi system, leading to a ten-membered ring. Because this is a higher-order...
    9 KB (1,075 words) - 20:53, 22 July 2024
  • Pi (stylized as π) is a 1998 American conceptual psychological thriller film written and directed by Darren Aronofsky (in his feature directorial debut)...
    27 KB (2,730 words) - 22:35, 27 May 2025
  • electron lone pairs with respect to the pi-system. Electronic effects can be transmitted throughout a pi-system allowing their influence to extend further...
    8 KB (1,083 words) - 13:03, 7 March 2024
  • Thumbnail for Seeq Corporation
    commonly aggregated in data historians such as OSIsoft's PI system, Inductive Automation's Ignition system, and others like Emerson's Ovation and DeltaV, GE...
    5 KB (437 words) - 20:33, 21 January 2025
  • Thumbnail for Pi Scorpii
    Pi Scorpii or π Scorpii, is a triple star system in the southern constellation of Scorpius. With a combined apparent magnitude of 2.9, it can be easily...
    12 KB (1,021 words) - 20:01, 2 June 2025
  • Thumbnail for Super PI
    to compute pi to 232 digits. Super PI is popular in the overclocking community, both as a benchmark to test the performance of these systems and as a stress...
    4 KB (316 words) - 22:20, 16 December 2024
  • Nikita Ermoshkin and Edward T. Samulski and was originally owned by EiPi Systems, but is now being developed by Carbon. The continuous process begins with...
    7 KB (661 words) - 16:27, 8 June 2024
  • Thumbnail for Buckingham π theorem
    p ) = 0 , {\displaystyle F(\pi _{1},\pi _{2},\ldots ,\pi _{p})=0,} where π 1 , … , π p {\displaystyle \pi _{1},\ldots ,\pi _{p}} are dimensionless parameters...
    33 KB (5,492 words) - 19:20, 23 May 2025
  • Thumbnail for Nano Pi
    including the NanoPi M1+, NanoPi M3, NanoPi M4v2, NanoPi Neo3, NanoPi Neo4, NanoPi Neo Air, NanoPI R5C. The NanoPi M1+ and Neo3 were reviewed as a smaller...
    4 KB (353 words) - 16:12, 22 August 2024