enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Boltzmann constant - Wikipedia

    en.wikipedia.org/wiki/Boltzmann_constant

    At the standard state temperature of 298.15 K (25.00 °C; 77.00 °F), it is approximately 25.69 mV. The thermal voltage is also important in plasmas and electrolyte solutions (e.g. the Nernst equation); in both cases it provides a measure of how much the spatial distribution of electrons or ions is affected by a boundary held at a fixed voltage.

  3. Norm (mathematics) - Wikipedia

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

    In mathematics, a norm is a function from a real or complex vector space to the non-negative real numbers that behaves in certain ways like the distance from the origin: it commutes with scaling, obeys a form of the triangle inequality, and is zero only at the origin.

  4. Nernst equation - Wikipedia

    en.wikipedia.org/wiki/Nernst_equation

    In electrochemistry, the Nernst equation is a chemical thermodynamical relationship that permits the calculation of the reduction potential of a reaction (half-cell or full cell reaction) from the standard electrode potential, absolute temperature, the number of electrons involved in the redox reaction, and activities (often approximated by concentrations) of the chemical species undergoing ...

  5. Radon–Nikodym theorem - Wikipedia

    en.wikipedia.org/wiki/Radon–Nikodym_theorem

    The theorem is named after Johann Radon, who proved the theorem for the special case where the underlying space is R n in 1913, and for Otto Nikodym who proved the general case in 1930. [2] In 1936 Hans Freudenthal generalized the Radon–Nikodym theorem by proving the Freudenthal spectral theorem , a result in Riesz space theory; this contains ...

  6. List of equations in quantum mechanics - Wikipedia

    en.wikipedia.org/wiki/List_of_equations_in...

    One particle: N particles: One dimension ^ = ^ + = + ^ = = ^ + (,,) = = + (,,) where the position of particle n is x n. = + = = +. (,) = /.There is a further restriction — the solution must not grow at infinity, so that it has either a finite L 2-norm (if it is a bound state) or a slowly diverging norm (if it is part of a continuum): [1] ‖ ‖ = | |.

  7. Volume of an n-ball - Wikipedia

    en.wikipedia.org/wiki/Volume_of_an_n-ball

    However, if p = 1 then the correction factor is √ n: the surface area of an L 1 sphere of radius R in R n is √ n times the derivative of the volume of an L 1 ball. This can be seen most simply by applying the divergence theorem to the vector field F(x) = x to get

  8. Snell's law - Wikipedia

    en.wikipedia.org/wiki/Snell's_law

    Given n lines L and a point P(L) on each line, find the locus of points Q such that the lengths of the line segments QP(L) satisfy certain conditions. For example, when n = 4, given the lines a, b, c, and d and a point A on a, B on b, and so on, find the locus of points Q such that the product QA*QB equals the product QC*QD.

  9. General linear group - Wikipedia

    en.wikipedia.org/wiki/General_linear_group

    When F is R or C, SL(n, F) is a Lie subgroup of GL(n, F) of dimension n 2 − 1. The Lie algebra of SL(n, F) consists of all n×n matrices over F with vanishing trace. The Lie bracket is given by the commutator. The special linear group SL(n, R) can be characterized as the group of volume and orientation-preserving linear transformations of R n.