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  1. 律動機使用心得 - 購物搜尋結果

    更多 律動機使用心得 相關商品

  2. en.wikipedia.org › wiki › Schrödinger_equationSchrödinger equation - Wikipedia

    Linearity. The Schrödinger equation is a linear differential equation, meaning that if two state vectors and are solutions, then so is any linear combination. of the two state vectors where a and b are any complex numbers. [13] : 25 Moreover, the sum can be extended for any number of state vectors.

  3. en.wikipedia.org › wiki › Taylor_seriesTaylor series - Wikipedia

    In mathematics, the Taylor series or Taylor expansion of a function is an infinite sum of terms that are expressed in terms of the function's derivatives at a single point. For most common functions, the function and the sum of its Taylor series are equal near this point. Taylor series are named after Brook Taylor, who introduced them in 1715 ...

  4. en.wikipedia.org › wiki › Ulterior_Motives_(song)Ulterior Motives (song) - Wikipedia

    Ulterior Motives (song) " Ulterior Motives " is a pop song recorded by the British-Canadian filmmakers Christopher Saint Booth and Philip Adrian Booth around 1986. [7] It gained popularity online after a seventeen-second snippet of the song, at the time unidentified, was posted online in 2021. Derived from the previously debated lyrics of the ...

  5. en.wikipedia.org › wiki › List_of_trigonometric_identitiesList of trigonometric identities - Wikipedia

    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.

  6. en.wikipedia.org › wiki › Spherical_coordinate_systemSpherical coordinate system - Wikipedia

    • Definition
    • Applications
    • Coordinate System Conversions
    • Generalization
    • Integration and Differentiation in Spherical Coordinates
    • Kinematics
    • See Also
    • Bibliography
    • External Links

    To define a spherical coordinate system, one must designate an origin point in space, O, and two orthogonal directions: the zenith reference direction and the azimuth reference direction. These choices determine a reference plane that is typically defined as containing the point of origin and the x– and y–axes, either of which may be designated as ...

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    Just as the two-dimensional Cartesian coordinate system is useful—has a wide set of applications—on a planar surface, a two-dimensional spherical coordinate system is useful on the surface of a sphere. For example, one sphere that is described in Cartesian coordinates with the equation x2 + y2 + z2 = c2 can be described in spherical coordinates by ...

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    As the spherical coordinate system is only one of many three-dimensional coordinate systems, there exist equations for converting coordinates between the spherical coordinate system and others.

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    It is also possible to deal with ellipsoids in Cartesian coordinates by using a modified version of the spherical coordinates. Let P be an ellipsoid specified by the level set The modified spherical coordinates of a point in P in the ISO convention (i.e. for physics: radius r, inclination θ, azimuth φ) can be obtained from its Cartesian coordinates...

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    The following equations (Iyanaga 1977) assume that the colatitude θ is the inclination from the positive z axis, as in the physics conventiondiscussed. The line element for an infinitesimal displacement from (r, θ, φ) to (r + dr, θ + dθ, φ + dφ)is This gives the transformation from the spherical to the cartesian, the other way around is given by it...

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    In spherical coordinates, the position of a point or particle (although better written as a triple( r , θ , φ ) {\displaystyle (r,\theta ,\varphi )} ) can be written as The angular momentumis The corresponding angular momentum operatorthen follows from the phase-space reformulation of the above, The torque is given as The kinetic energy is given as

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    Celestial coordinate system – System for specifying positions of celestial objectsPages displaying short descriptions of redirect targets
    Coordinate system– Method for specifying point positions
    Del in cylindrical and spherical coordinates– Mathematical gradient operator in certain coordinate systems
    Double Fourier sphere method

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    Iyanaga, Shōkichi; Kawada, Yukiyosi (1977). Encyclopedic Dictionary of Mathematics. MIT Press. ISBN 978-0262090162.
    Morse PM, Feshbach H (1953). Methods of Theoretical Physics, Part I. New York: McGraw-Hill. p. 658. ISBN 0-07-043316-X. LCCN 52011515.
    Margenau H, Murphy GM (1956). The Mathematics of Physics and Chemistry. New York: D. van Nostrand. pp. 177–178. LCCN 55010911.
    Korn GA, Korn TM (1961). Mathematical Handbook for Scientists and Engineers. New York: McGraw-Hill. pp. 174–175. LCCN 59014456. ASIN B0000CKZX7.

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    "Spherical coordinates", Encyclopedia of Mathematics, EMS Press, 2001 [1994]
    MathWorld description of spherical coordinates
    Coordinate Converter – converts between polar, Cartesian and spherical coordinates

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  7. en.wikipedia.org › wiki › LidarLidar - Wikipedia

    Lidar (/ˈlaɪdɑːr/, also LIDAR, LiDAR or LADAR, an acronym of "light detection and ranging"[1] or "laser imaging, detection, and ranging"[2]) is a method for determining ranges by targeting an object or a surface with a laser and measuring the time for the reflected light to return to the receiver. Lidar may operate in a fixed direction (e ...

  8. en.wikipedia.org › wiki › Large_language_modelLarge language model - Wikipedia

    A large language model (LLM) is a computational model notable for its ability to achieve general-purpose language generation and other natural language processing tasks such as classification.Based on language models, LLMs acquire these abilities by learning statistical relationships from text documents during a computationally intensive self-supervised and semi-supervised training process.

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