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  2. Mean value theorem - Wikipedia

    en.wikipedia.org/wiki/Mean_value_theorem

    Cauchy's mean value theorem, also known as the extended mean value theorem, is a generalization of the mean value theorem. [ 6 ] [ 7 ] It states: if the functions f {\displaystyle f} and g {\displaystyle g} are both continuous on the closed interval [ a , b ] {\displaystyle [a,b]} and differentiable on the open interval ( a , b ) {\displaystyle ...

  3. Convergence tests - Wikipedia

    en.wikipedia.org/wiki/Convergence_tests

    Mean value theorem; Inverse function theorem; ... This is also known as the nth root test or Cauchy's criterion. ... is the Basel problem and the series converges to ...

  4. Cauchy theorem - Wikipedia

    en.wikipedia.org/wiki/Cauchy_theorem

    Several theorems are named after Augustin-Louis Cauchy. Cauchy theorem may mean: Cauchy's integral theorem in complex analysis, also Cauchy's integral formula; Cauchy's mean value theorem in real analysis, an extended form of the mean value theorem; Cauchy's theorem (group theory) Cauchy's theorem (geometry) on rigidity of convex polytopes

  5. Cauchy's convergence test - Wikipedia

    en.wikipedia.org/wiki/Cauchy's_convergence_test

    The Cauchy convergence test is a method used to test infinite series for convergence. It relies on bounding sums of terms in the series. It relies on bounding sums of terms in the series. This convergence criterion is named after Augustin-Louis Cauchy who published it in his textbook Cours d'Analyse 1821.

  6. Cauchy distribution - Wikipedia

    en.wikipedia.org/wiki/Cauchy_distribution

    Because the parameters of the Cauchy distribution do not correspond to a mean and variance, attempting to estimate the parameters of the Cauchy distribution by using a sample mean and a sample variance will not succeed. [19] For example, if an i.i.d. sample of size n is taken from a Cauchy distribution, one may calculate the sample mean as:

  7. Root test - Wikipedia

    en.wikipedia.org/wiki/Root_test

    In mathematics, the root test is a criterion for the convergence (a convergence test) of an infinite series.It depends on the quantity | |, where are the terms of the series, and states that the series converges absolutely if this quantity is less than one, but diverges if it is greater than one.

  8. Well-posed problem - Wikipedia

    en.wikipedia.org/wiki/Well-posed_problem

    For example, the Cauchy–Kowalevski theorem for Cauchy initial value problems essentially states that if the terms in a partial differential equation are all made up of analytic functions and a certain transversality condition is satisfied (the hyperplane or more generally hypersurface where the initial data are posed must be non ...

  9. Augustin-Louis Cauchy - Wikipedia

    en.wikipedia.org/wiki/Augustin-Louis_Cauchy

    The first pivotal theorem proved by Cauchy, now known as Cauchy's integral theorem, was the following: ∮ C f ( z ) d z = 0 , {\displaystyle \oint _{C}f(z)dz=0,} where f ( z ) is a complex-valued function holomorphic on and within the non-self-intersecting closed curve C (contour) lying in the complex plane .