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  2. True-range multilateration - Wikipedia

    en.wikipedia.org/wiki/True-range_multilateration

    There is no accepted or widely-used general term for what is termed true-range multilateration here . That name is selected because it: (a) is an accurate description and partially familiar terminology (multilateration is often used in this context); (b) avoids specifying the number of ranges involved (as does, e.g., range-range; (c) avoids implying an application (as do, e.g., DME/DME ...

  3. Intercept method - Wikipedia

    en.wikipedia.org/wiki/Intercept_method

    It was originally called the azimuth intercept method because the process involves drawing a line which intercepts the azimuth line. This name was shortened to intercept method and the intercept distance was shortened to 'intercept'. The method yields a line of position (LOP) on which the observer is situated. The intersection of two or more ...

  4. Poincaré–Lindstedt method - Wikipedia

    en.wikipedia.org/wiki/Poincaré–Lindstedt_method

    This method can be continued indefinitely in the same way, where the order-n term consists of a harmonic term ⁡ + ⁡ (), plus some super-harmonic terms , ⁡ +, ⁡ +. The coefficients of the super-harmonic terms are solved directly, and the coefficients of the harmonic term are determined by expanding down to order-(n+1), and eliminating ...

  5. Sight reduction - Wikipedia

    en.wikipedia.org/wiki/Sight_reduction

    The first approach of a compact and concise method was published by R. Doniol in 1955 [4] and involved haversines. The altitude is derived from sin ⁡ ( H c ) = n − a ⋅ ( m + n ) {\displaystyle \sin(Hc)=n-a\cdot (m+n)} , in which n = cos ⁡ ( L a t − D e c ) {\displaystyle n=\cos(Lat-Dec)} , m = cos ⁡ ( L a t + D e c ) {\displaystyle ...

  6. Newmark-beta method - Wikipedia

    en.wikipedia.org/wiki/Newmark-beta_method

    The Newmark-beta method is a method of numerical integration used to solve certain differential equations.It is widely used in numerical evaluation of the dynamic response of structures and solids such as in finite element analysis to model dynamic systems.

  7. OpenLB - Wikipedia

    en.wikipedia.org/wiki/OpenLB

    Automated grid generation [6] is one of the great advantages of OpenLB over other CFD software packages. The main advantages are listed below: Use of geometries in the STL file format or geometrically primitive forms (e.g. ball, cylinder, cone) and their union, intersection and difference

  8. Transmission-line matrix method - Wikipedia

    en.wikipedia.org/.../Transmission-line_matrix_method

    2D TLM example: an incident voltage pulse in two consecutive scattering events. The TLM method is based on Huygens' model of wave propagation and scattering and the analogy between field propagation and transmission lines. Therefore, it considers the computational domain as a mesh of transmission lines, interconnected at nodes.

  9. Conjugate gradient method - Wikipedia

    en.wikipedia.org/wiki/Conjugate_gradient_method

    This suggests taking the first basis vector p 0 to be the negative of the gradient of f at x = x 0. The gradient of f equals Ax − b. Starting with an initial guess x 0, this means we take p 0 = b − Ax 0. The other vectors in the basis will be conjugate to the gradient, hence the name conjugate gradient method.