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  2. List of trigonometric identities - Wikipedia

    en.wikipedia.org/wiki/List_of_trigonometric...

    Viète. de Moivre. Euler. Fourier. v. t. e. In trigonometry, trigonometric identities are equalities that involve trigonometric functions and are true for every value of the occurring variables for which both sides of the equality are defined. Geometrically, these are identities involving certain functions of one or more angles.

  3. Rigs of Rods - Wikipedia

    en.wikipedia.org/wiki/Rigs_of_Rods

    Rigs of Rods (RoR) is a free and open source [1] vehicle-simulation game which uses soft-body physics to simulate the motion destruction and deformation of vehicles. The game uses a soft-body physics engine to simulate a network of interconnected nodes (forming the chassis and the wheels) and gives the ability to simulate deformable objects.

  4. Normal distribution - Wikipedia

    en.wikipedia.org/wiki/Normal_distribution

    t. e. In probability theory and statistics, a normal distribution or Gaussian distribution is a type of continuous probability distribution for a real-valued random variable. The general form of its probability density function is {\displaystyle f (x)= {\frac {1} {\sqrt {2\pi \sigma ^ {2}}}}e^ {- {\frac { (x-\mu )^ {2}} {2\sigma ^ {2}}}}\,.}

  5. Rig (sailing) - Wikipedia

    en.wikipedia.org/wiki/Rig_(sailing)

    A sailing vessel's rig is its arrangement of masts, sails and rigging. [ 1 ] Examples include a schooner rig, cutter rig, junk rig, etc. [ 2 ] A rig may be broadly categorized as "fore-and-aft", "square", or a combination of both. Within the fore-and-aft category there is a variety of triangular and quadrilateral sail shapes.

  6. Rings of Power - Wikipedia

    en.wikipedia.org/wiki/Rings_of_Power

    J.R.R. Tolkien, The Silmarillion, "The Rings of Power and the Third Age" The Rings of Power were forged by the Elven -smiths of the Noldorin settlement of Eregion. [T 1] Best-known were the twenty Great Rings, which conferred powers including invisibility, but many lesser rings with minor powers were also created at that time. The smiths were led by Celebrimbor, the grandson of Fëanor, the ...

  7. Oil platform - Wikipedia

    en.wikipedia.org/wiki/Oil_platform

    The Lun-A (Lunskoye-A) platform, located off the north eastern coast of Sakhalin Island and is a concrete gravity base substructure (CGBS). An oil platform (also called an oil rig, offshore platform, oil production platform, etc.) is a large structure with facilities to extract and process petroleum and natural gas that lie in rock formations ...

  8. RIGS: Mechanized Combat League - Wikipedia

    en.wikipedia.org/wiki/RIGS:_Mechanized_Combat_League

    WW: 13 October 2016. Genre (s) First-person shooter, sports. Mode (s) Single-player, online multiplayer. RIGS: Mechanized Combat League is a 2016 first-person shooter sports video game developed by Guerrilla Cambridge and published by Sony Interactive Entertainment for the PlayStation 4 console and its virtual reality add-on PlayStation VR. [1][2]

  9. Ring of Fire - Wikipedia

    en.wikipedia.org/wiki/Ring_of_Fire

    Diagram of the geological process of subduction. The Ring of Fire (also known as the Pacific Ring of Fire, the Rim of Fire, the Girdle of Fire or the Circum-Pacific belt) [ note 1 ] is a tectonic belt of volcanoes and earthquakes. It is about 40,000 km (25,000 mi) long [ 1 ] and up to about 500 km (310 mi) wide, [ 2 ] and surrounds most of the ...