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  2. Science and technology in Indonesia - Wikipedia

    en.wikipedia.org/wiki/Science_and_technology_in...

    Habibie's memorial in Gorontalo, he is remembered as the prominent figure in Indonesian science and technology, especially in aeronautics sector. B. J. Habibie, German-trained professor in aerospace engineering. Produced theories known as the Habibie Theorem, Habibie Factor, and Habibie Method. Later he became the third president of Indonesia.

  3. Formulas for generating Pythagorean triples - Wikipedia

    en.wikipedia.org/wiki/Formulas_for_generating...

    Then r 2 /2 = 18. The three factor-pairs of 18 are (1, 18), (2, 9), and (3, 6). All three factor pairs will produce triples using the above equations. s = 1, t = 18 produces the triple [7, 24, 25] because x = 6 + 1 = 7, y = 6 + 18 = 24, z = 6 + 1 + 18 = 25. s = 2, t = 9 produces the triple [8, 15, 17] because x = 6 + 2 = 8, y = 6 + 9 = 15, z ...

  4. B. J. Habibie - Wikipedia

    en.wikipedia.org/wiki/B._J._Habibie

    Bacharuddin Jusuf Habibie (Indonesian: [baxaˈrudːin ˈjusuf haˈbibi] ⓘ; 25 June 1936 – 11 September 2019) was an Indonesian politician, engineer and scientist who served as the third president of Indonesia from 1998 to 1999.

  5. Horner's method - Wikipedia

    en.wikipedia.org/wiki/Horner's_method

    In binary (base-2) math, multiplication by a power of 2 is merely a register shift operation. Thus, multiplying by 2 is calculated in base-2 by an arithmetic shift. The factor (2 −1) is a right arithmetic shift, a (0) results in no operation (since 2 0 = 1 is the multiplicative identity element), and a (2 1) results in a left arithmetic shift ...

  6. Hypergeometric function - Wikipedia

    en.wikipedia.org/wiki/Hypergeometric_function

    Plot of the hypergeometric function 2F1(a,b; c; z) with a=2 and b=3 and c=4 in the complex plane from -2-2i to 2+2i with colors created with Mathematica 13.1 function ComplexPlot3D In mathematics , the Gaussian or ordinary hypergeometric function 2 F 1 ( a , b ; c ; z ) is a special function represented by the hypergeometric series , that ...

  7. Quantum Hall effect - Wikipedia

    en.wikipedia.org/wiki/Quantum_Hall_effect

    The quantum Hall effect (or integer quantum Hall effect) is a quantized version of the Hall effect which is observed in two-dimensional electron systems subjected to low temperatures and strong magnetic fields, in which the Hall resistance R xy exhibits steps that take on the quantized values

  8. Friedmann equations - Wikipedia

    en.wikipedia.org/wiki/Friedmann_equations

    The term Friedmann equation sometimes is used only for the first equation. [3] In these equations, R(t) is the cosmological scale factor, is the Newtonian constant of gravitation, Λ is the cosmological constant with dimension length −2, ρ is the energy density and p is the isotropic pressure.

  9. Finite subgroups of SU(2) - Wikipedia

    en.wikipedia.org/wiki/Finite_subgroups_of_SU(2)

    Let Γ be a finite subgroup of SO(3), the three-dimensional rotation group.There is a natural homomorphism f of SU(2) onto SO(3) which has kernel {±I}. [4] This double cover can be realised using the adjoint action of SU(2) on the Lie algebra of traceless 2-by-2 skew-adjoint matrices or using the action by conjugation of unit quaternions.