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  2. LogSumExp - Wikipedia

    en.wikipedia.org/wiki/LogSumExp

    Download as PDF; Printable version; ... It is defined as the logarithm of the sum of the exponentials of the ... Many math libraries such as IT++ provide a default ...

  3. Exponentiation - Wikipedia

    en.wikipedia.org/wiki/Exponentiation

    The definition of e x as the exponential function allows defining b x for every positive real numbers b, in terms of exponential and logarithm function. Specifically, the fact that the natural logarithm ln(x) is the inverse of the exponential function e x means that one has = ⁡ (⁡) = ⁡

  4. List of logarithmic identities - Wikipedia

    en.wikipedia.org/wiki/List_of_logarithmic_identities

    The multiple valued version of log(z) is a set, but it is easier to write it without braces and using it in formulas follows obvious rules. log(z) is the set of complex numbers v which satisfy e v = z; arg(z) is the set of possible values of the arg function applied to z. When k is any integer:

  5. Logarithm - Wikipedia

    en.wikipedia.org/wiki/Logarithm

    Because log(x) is the sum of the terms of the form log(1 + 2 −k) corresponding to those k for which the factor 1 + 2 −k was included in the product P, log(x) may be computed by simple addition, using a table of log(1 + 2 −k) for all k. Any base may be used for the logarithm table. [53]

  6. List of mathematical functions - Wikipedia

    en.wikipedia.org/wiki/List_of_mathematical_functions

    Logarithms: the inverses of exponential functions; useful to solve equations involving exponentials. Natural logarithm; Common logarithm; Binary logarithm; Power functions: raise a variable number to a fixed power; also known as Allometric functions; note: if the power is a rational number it is not strictly a transcendental function. Periodic ...

  7. Exponential sum - Wikipedia

    en.wikipedia.org/wiki/Exponential_sum

    The sum of exponentials is a useful model in pharmacokinetics (chemical kinetics in general) for describing the concentration of a substance over time. The exponential terms correspond to first-order reactions, which in pharmacology corresponds to the number of modelled diffusion compartments. [2] [3]

  8. Trump picks Navarro to be senior counselor for trade and ...

    www.aol.com/news/trump-picks-navarro-senior...

    WASHINGTON (Reuters) -U.S. President-elect Donald Trump said on Wednesday he had picked Peter Navarro to be senior counselor for trade and manufacturing. Navarro served as head of a newly created ...

  9. Glossary of mathematical jargon - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_mathematical...

    Let V be a finite-dimensional vector space over k....Let (e i) 1≤ i ≤ n be a basis for V....There is an isomorphism of the polynomial algebra k[T ij] 1≤ i, j ≤ n onto the algebra Sym k (V ⊗ V *)....It extends to an isomorphism of k[GL n] to the localized algebra Sym k (V ⊗ V *) D, where D = det(e i ⊗ e j *)....We write k[GL(V ...

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