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  2. Curve fitting - Wikipedia

    en.wikipedia.org/wiki/Curve_fitting

    Fitting of a noisy curve by an asymmetrical peak model, with an iterative process (Gauss–Newton algorithm with variable damping factor α).Curve fitting [1] [2] is the process of constructing a curve, or mathematical function, that has the best fit to a series of data points, [3] possibly subject to constraints.

  3. Art gallery problem - Wikipedia

    en.wikipedia.org/wiki/Art_gallery_problem

    A set of points is said to guard a polygon if, for every point in the polygon, there is some such that the line segment between and does not leave the polygon. The art gallery problem can be applied in several domains such as in robotics , when artificial intelligences (AI) need to execute movements depending on their surroundings.

  4. Line clipping - Wikipedia

    en.wikipedia.org/wiki/Line_clipping

    The result of the classification determines the edges intersected by the line p. The algorithm is simple, easy to implement and extensible to a convex window as well. The line or line segment p can be computed from points r 1, r 2 given in homogeneous coordinates directly using the cross product as p = r 1 × r 2 = (x 1, y 1, w 1) × (x 2, y 2 ...

  5. Comparison of numerical-analysis software - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_numerical...

    Mostly compatible with MATLAB. GAUSS: Aptech Systems 1984 21 8 December 2020: Not free Proprietary: GNU Data Language: Marc Schellens 2004 1.0.2 15 January 2023: Free GPL: Aimed as a drop-in replacement for IDL/PV-WAVE IBM SPSS Statistics: Norman H. Nie, Dale H. Bent, and C. Hadlai Hull 1968 23.0 3 March 2015: Not free Proprietary: Primarily ...

  6. Polynomial regression - Wikipedia

    en.wikipedia.org/wiki/Polynomial_regression

    For example, x and x 2 have correlation around 0.97 when x is uniformly distributed on the interval (0, 1). Although the correlation can be reduced by using orthogonal polynomials , it is generally more informative to consider the fitted regression function as a whole.

  7. Tutte embedding - Wikipedia

    en.wikipedia.org/wiki/Tutte_embedding

    In graph drawing and geometric graph theory, a Tutte embedding or barycentric embedding of a simple, 3-vertex-connected, planar graph is a crossing-free straight-line embedding with the properties that the outer face is a convex polygon and that each interior vertex is at the average (or barycenter) of its neighbors' positions.

  8. Nelder–Mead method - Wikipedia

    en.wikipedia.org/wiki/Nelder–Mead_method

    Examples of simplices include a line segment in one-dimensional space, a triangle in two-dimensional space, a tetrahedron in three-dimensional space, and so forth. The method approximates a local optimum of a problem with n variables when the objective function varies smoothly and is unimodal .

  9. FEATool Multiphysics - Wikipedia

    en.wikipedia.org/wiki/FEATool_Multiphysics

    FEATool Multiphysics is a fully integrated physics and PDE simulation environment where the modeling process is subdivided into six steps; preprocessing (CAD and geometry modeling), mesh and grid generation, physics and PDE specification, boundary condition specification, solution, and postprocessing and visualization.