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  2. Eddington–Finkelstein coordinates - Wikipedia

    en.wikipedia.org/wiki/Eddington–Finkelstein...

    Null geodesics are the worldlines of photons; radial ones are those that are moving directly towards or away from the central mass. They are named for Arthur Stanley Eddington [1] and David Finkelstein. [2] Although they appear to have inspired the idea, neither ever wrote down these coordinates or the metric in these coordinates.

  3. Node (physics) - Wikipedia

    en.wikipedia.org/wiki/Node_(physics)

    Atomic orbitals are classified according to the number of radial and angular nodes. A radial node for the hydrogen atom is a sphere that occurs where the wavefunction for an atomic orbital is equal to zero, while the angular node is a flat plane. [4] Molecular orbitals are classified according to bonding character. Molecular orbitals with an ...

  4. Radial basis function - Wikipedia

    en.wikipedia.org/wiki/Radial_basis_function

    A radial function is a function : [,).When paired with a norm on a vector space ‖ ‖: [,), a function of the form = (‖ ‖) is said to be a radial kernel centered at .A radial function and the associated radial kernels are said to be radial basis functions if, for any finite set of nodes {} =, all of the following conditions are true:

  5. Principal quantum number - Wikipedia

    en.wikipedia.org/wiki/Principal_quantum_number

    In a simplistic one-electron model described below, the total energy of an electron is a negative inverse quadratic function of the principal quantum number n, leading to degenerate energy levels for each n > 1. [1] In more complex systems—those having forces other than the nucleus–electron Coulomb force—these levels split.

  6. The Infinity Gauntlet (2015 comic book) - Wikipedia

    en.wikipedia.org/wiki/The_Infinity_Gauntlet...

    The Infinity Gauntlet is a five-issue American comic book limited series published by Marvel Comics as part of the 2015 Secret Wars crossover. It was written by Gerry Duggan and drawn by Dustin Weaver. The series was initially published between July 2015 and January 2016 before being collected into a single volume.

  7. Radial basis function kernel - Wikipedia

    en.wikipedia.org/wiki/Radial_basis_function_kernel

    In machine learning, the radial basis function kernel, or RBF kernel, is a popular kernel function used in various kernelized learning algorithms. In particular, it is commonly used in support vector machine classification .

  8. Slater-type orbital - Wikipedia

    en.wikipedia.org/wiki/Slater-type_orbital

    STOs have the following radial part: =where n is a natural number that plays the role of principal quantum number, n = 1,2,...,; N is a normalizing constant,; r is the distance of the electron from the atomic nucleus, and

  9. The Infinity Gauntlet - Wikipedia

    en.wikipedia.org/wiki/The_Infinity_Gauntlet

    In March 2018, Marvel released an Infinity Gauntlet slipcase set of 12 hardcover books. Material began with Infinity Gauntlet Prologue and included all three Infinity crossovers, their tie-ins, intervening material, and a 528-page "companion" hardcover. [39] The Infinity Gauntlet Prologue was released independently of the set at the same time. [40]