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  2. Euclidean planes in three-dimensional space - Wikipedia

    en.wikipedia.org/wiki/Euclidean_planes_in_three...

    This familiar equation for a plane is called the general form of the equation of the plane or just the plane equation. [6] Thus for example a regression equation of the form y = d + ax + cz (with b = −1) establishes a best-fit plane in three-dimensional space when there are two explanatory variables.

  3. Collocation method - Wikipedia

    en.wikipedia.org/wiki/Collocation_method

    In mathematics, a collocation method is a method for the numerical solution of ordinary differential equations, partial differential equations and integral equations.The idea is to choose a finite-dimensional space of candidate solutions (usually polynomials up to a certain degree) and a number of points in the domain (called collocation points), and to select that solution which satisfies the ...

  4. Elliptic curve - Wikipedia

    en.wikipedia.org/wiki/Elliptic_curve

    In other words, the number of points on the curve grows proportionally to the number of elements in the field. This fact can be understood and proven with the help of some general theory; see local zeta function and étale cohomology for example. Set of affine points of elliptic curve y 2 = x 3 − x over finite field F 89.

  5. Parabola - Wikipedia

    en.wikipedia.org/wiki/Parabola

    The usual procedure to determine the coefficients ,, is to insert the point coordinates into the equation. The result is a linear system of three equations, which can be solved by Gaussian elimination or Cramer's rule, for example. An alternative way uses the inscribed angle theorem for parabolas.

  6. Equation - Wikipedia

    en.wikipedia.org/wiki/Equation

    In mathematics, an equation is a mathematical formula that expresses ... For example, the equation = ... Their intersection point, (2,3), satisfies both equations. ...

  7. Three-body problem - Wikipedia

    en.wikipedia.org/wiki/Three-body_problem

    When three bodies orbit each other, the resulting dynamical system is chaotic for most initial conditions. Because there are no solvable equations for most three-body systems, the only way to predict the motions of the bodies is to estimate them using numerical methods. The three-body problem is a special case of the n-body problem.

  8. Three-point estimation - Wikipedia

    en.wikipedia.org/wiki/Three-point_estimation

    For example, a triangular distribution might be used, depending on the application. In three-point estimation, three figures are produced initially for every distribution that is required, based on prior experience or best-guesses: a = the best-case estimate; m = the most likely estimate; b = the worst-case estimate

  9. Euclidean plane - Wikipedia

    en.wikipedia.org/wiki/Euclidean_plane

    Plane equation in normal form. In Euclidean geometry, a plane is a flat two-dimensional surface that extends indefinitely. Euclidean planes often arise as subspaces of three-dimensional space. A prototypical example is one of a room's walls, infinitely extended and assumed infinitesimal thin.

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