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  2. Garbage in, garbage out - Wikipedia

    en.wikipedia.org/wiki/Garbage_in,_garbage_out

    In computer science, garbage in, garbage out (GIGO) is the concept that flawed, biased or poor quality ("garbage") information or input produces a result or output of similar ("garbage") quality. The adage points to the need to improve data quality in, for example, programming.

  3. Scale analysis (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Scale_analysis_(mathematics)

    Scale analysis (or order-of-magnitude analysis) is a powerful tool used in the mathematical sciences for the simplification of equations with many terms. First the approximate magnitude of individual terms in the equations is determined. Then some negligibly small terms may be ignored.

  4. Gaussian function - Wikipedia

    en.wikipedia.org/wiki/Gaussian_function

    Gaussian functions are the Green's function for the (homogeneous and isotropic) diffusion equation (and to the heat equation, which is the same thing), a partial differential equation that describes the time evolution of a mass-density under diffusion.

  5. Governing equation - Wikipedia

    en.wikipedia.org/wiki/Governing_equation

    This explains the duality in Darcy's law as a governing equation and a defining equation for absolute permeability. The non-linearity of the material derivative in balance equations in general, and the complexities of Cauchy's momentum equation and Navier-Stokes equation makes the basic equations in classical mechanics exposed to establishing ...

  6. Gaussian binomial coefficient - Wikipedia

    en.wikipedia.org/wiki/Gaussian_binomial_coefficient

    The Gaussian binomial coefficients are defined by: [1] = () (+) () ()where m and r are non-negative integers. If r > m, this evaluates to 0.For r = 0, the value is 1 since both the numerator and denominator are empty products.

  7. Gibbs–Helmholtz equation - Wikipedia

    en.wikipedia.org/wiki/Gibbs–Helmholtz_equation

    The definition of the Gibbs function is = + where H is the enthalpy defined by: = +. Taking differentials of each definition to find dH and dG, then using the fundamental thermodynamic relation (always true for reversible or irreversible processes): = where S is the entropy, V is volume, (minus sign due to reversibility, in which dU = 0: work other than pressure-volume may be done and is equal ...

  8. Gigolo - Wikipedia

    en.wikipedia.org/wiki/Gigolo

    A gigolo (/ ˈ dʒ ɪ ɡ ə l oʊ, ˈ ʒ ɪ ɡ-/ JIG-ə-loh, ZHIG-) is a male escort or social companion who is supported by a person in a continuing relationship. [1]The term gigolo usually implies a man who adopts a lifestyle consisting of a number of such relationships serially rather than having other means of support.

  9. Landau–Lifshitz–Gilbert equation - Wikipedia

    en.wikipedia.org/wiki/Landau–Lifshitz–Gilbert...

    The LLG equation describes a more general scenario of magnetization dynamics beyond the simple Larmor precession. In particular, the effective field driving the precessional motion of M is not restricted to real magnetic fields; it incorporates a wide range of mechanisms including magnetic anisotropy , exchange interaction , and so on.