Ellipsoid: (real) An ellipsoid is a closed central surface of the second order (see Figure 1). The canonical equation of an ellipsoid has the form $$ \frac{x^2}{a^2} + \frac{y^2}{b^2} + \frac{z^2}{c^2} = 1 ... (Mathematics) [100%] 2023-02-10
Ellipsoid: Ellipsoid, a quadric surface whose sections are ellipses. Analytically, it has for its equation x²/a² + y²/b² + z²/c² = 1, a, b, c being its axes; the name is also given to the solid contained by this surface (see ... [100%] 2022-09-02
Ellipsoid: An ellipsoid is a surface that may be obtained from a sphere by deforming it by means of directional scalings, or more generally, of an affine transformation. An ellipsoid is a quadric surface; that is, a surface that may be ... (Quadric surface that looks like a deformed sphere) [100%] 2023-03-18 [Geometric shapes] [Surfaces]...
Variable (computer science): In computer programming, a variable is an abstract storage location paired with an associated symbolic name, which contains some known or unknown quantity of information referred to as a value; or in simpler terms, a variable is a named container ... (Computer science) [91%] 2023-11-27 [Variable (computer science)] [Programming language concepts]...
Variable: In mathematics, a variable is a number whose value is not known. In basic arithmetic problems, the variable is typically the answer which the student must find: Since 5 + 7 = 12, the answer is: A variable is usually is the ... [91%] 2023-02-08 [Mathematics]
Variable (programming): In computer programming, a variable is an identifier (usually a letter, word, or phrase) that is used to identify a value stored in the system's memory. A variable's value can generally be accessed or changed at any time. (Programming) [91%] 2023-06-28
Variable: In computer science and mathematics, a variable (Template:PronEng) (sometimes called an object or identifier in computer science) is a symbolic representation used to denote a quantity or expression. In mathematics, a variable often represents an "unknown" quantity that has ... [91%] 2024-01-11 [Algebra] [Elementary mathematics]...
Variable (mathematics): In mathematics, a variable (from Latin variabilis, "changeable") is a symbol, typically a letter, that holds a place for constants, often numbers. One say colloqually that the variable represents or denotes the object, and that the object is the value ... (Mathematics) [91%] 2024-09-05 [Variables (mathematics)] [Algebra]...
Ellipsoidal dome: An ellipsoidal dome is a dome (also see geodesic dome), which has a bottom cross-section which is a circle, but has a cupola whose curve is an ellipse. There are two types of ellipsoidal domes: prolate ellipsoidal domes and ... (Engineering) [90%] 2023-07-26 [Architectural elements]
Ellipsoidal harmonic: A function of a point on an ellipsoid that appears in the solution of the Laplace equation by the method of separation of variables in ellipsoidal coordinates. Let $ ( x , y , z ) $ be Cartesian coordinates in the Euclidean space $ \mathbf R ... (Mathematics) [90%] 2023-09-15
Ellipsoidal coordinates: spatial elliptic coordinates The numbers $ \lambda $, $ \mu $ and $ \nu $ connected with Cartesian rectangular coordinates $ x $, $ y $ and $ z $ by the formulas $$ x ^ {2} = \frac{( \lambda + a ^ {2} ) ( \mu + a ^ {2} ) ( \nu + a ^ {2} ) }{( b ^ {2} - a ^ {2} ) ( c ^ {2} - a ... (Mathematics) [90%] 2023-07-10
Ellipsoidal coordinates: Ellipsoidal coordinates are a three-dimensional orthogonal coordinate system \displaystyle{ (\lambda, \mu, \nu) }[/math] that generalizes the two-dimensional elliptic coordinate system. Unlike most three-dimensional orthogonal coordinate systems that feature quadratic coordinate surfaces, the ellipsoidal coordinate system is based ... [90%] 2024-04-19 [Three-dimensional coordinate systems] [Orthogonal coordinate systems]...
Rotation (music): In broadcasting, rotation is the repeated airing of a limited playlist of songs on a radio station or satellite radio channel, or music videos on a TV network. They are usually in a different order each time. (Music) [82%] 2023-12-31 [Radio terminology]
Rotation (mathematics): Rotation in mathematics is a concept originating in geometry. Any rotation is a motion of a certain space that preserves at least one point. (Mathematics) [82%] 2023-12-29 [Euclidean symmetries] [Rotational symmetry]...
Rotation: A special kind of motion, for which at least one point in space remains at rest. If the rotation is in a plane, the fixed point is called the centre of the rotation; if the rotation is in space, the ... (Mathematics) [82%] 2023-12-29
Rotation: Rotation, or spin, is the circular movement of an object around a central axis. A plane figure can rotate in either a clockwise or counterclockwise direction around a perpendicular central axis intersecting anywhere inside or outside the figure. (Physics) [82%] 2023-10-10 [Rotation] [Euclidean geometry]...
Rotation (mathematics): Rotation in mathematics is a concept originating in geometry. Any rotation is a motion of a certain space that preserves at least one point. (Mathematics) [82%] 2023-12-28 [Euclidean symmetries] [Rotational symmetry]...
Rotation (aeronautics): In aviation, rotation refers to the action of applying back pressure to a control device, such as a yoke, side-stick or centre stick, to lift the nose wheel off the ground during takeoff. The aircraft rotates around its lateral ... (Aeronautics) [82%] 2023-12-29 [Flight phases]
Roasting: Roasting is a cooking method that uses dry heat where hot air covers the food, cooking it evenly on all sides with temperatures of at least 150 °C (300 °F) from an open flame, oven, or other heat source. Roasting ... (Cooking method using dry air heat) [82%] 2023-12-29 [Cooking techniques] [Culinary terminology]...
Rotation: Rotation or rotational motion is the circular movement of an object around a central line, known as axis of rotation. A plane figure can rotate in either a clockwise or counterclockwise sense around a perpendicular axis intersecting anywhere inside or ... (Movement of an object around an axis) [82%] 2023-12-28 [Rotation] [Euclidean geometry]...
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