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  2. Integration by parts - Wikipedia

    en.wikipedia.org/wiki/Integration_by_parts

    Integration by parts is a heuristic rather than a purely mechanical process for solving integrals; given a single function to integrate, the typical strategy is to carefully separate this single function into a product of two functions u(x)v(x) such that the residual integral from the integration by parts formula is easier to evaluate than the ...

  3. Integration by parts operator - Wikipedia

    en.wikipedia.org/wiki/Integration_by_parts_operator

    This operator A is an integration by parts operator, also known as the divergence operator; a proof can be found in Elworthy (1974). The classical Wiener space C 0 of continuous paths in R n starting at zero and defined on the unit interval [0, 1] has another integration by parts operator.

  4. List of integrals of trigonometric functions - Wikipedia

    en.wikipedia.org/wiki/List_of_integrals_of...

    The following is a list of integrals (antiderivative functions) of trigonometric functions.For antiderivatives involving both exponential and trigonometric functions, see List of integrals of exponential functions.

  5. Semimartingale - Wikipedia

    en.wikipedia.org/wiki/Semimartingale

    Products of semimartingales are semimartingales, which is a consequence of the integration by parts formula for the Itō integral. The quadratic variation exists for every semimartingale. The class of semimartingales is closed under optional stopping , localization , change of time and absolutely continuous change of probability measure (see ...

  6. Integration by reduction formulae - Wikipedia

    en.wikipedia.org/wiki/Integration_by_reduction...

    In integral calculus, integration by reduction formulae is a method relying on recurrence relations. It is used when an expression containing an integer parameter , usually in the form of powers of elementary functions, or products of transcendental functions and polynomials of arbitrary degree , can't be integrated directly.

  7. Talk:Integration by parts - Wikipedia

    en.wikipedia.org/wiki/Talk:Integration_by_parts

    I am in strong doubt about most of the given names for the tabular form of repeated integration by parts. Especially, I have a hard time to assume that this film title is really given in the cited reference. Purgy 17:18, 29 July 2018 (UTC) For now I consider this as settled. Purgy 07:05, 30 July 2018 (UTC)

  8. Integration using Euler's formula - Wikipedia

    en.wikipedia.org/wiki/Integration_using_Euler's...

    At this point we can either integrate directly, or we can first change the integrand to 2 cos 6x − 4 cos 4x + 2 cos 2x and continue from there. Either method gives Either method gives ∫ sin 2 ⁡ x cos ⁡ 4 x d x = − 1 24 sin ⁡ 6 x + 1 8 sin ⁡ 4 x − 1 8 sin ⁡ 2 x + C . {\displaystyle \int \sin ^{2}x\cos 4x\,dx=-{\frac {1}{24 ...

  9. Trigonometric integral - Wikipedia

    en.wikipedia.org/wiki/Trigonometric_integral

    Plot of Ci(x) for 0 < x ≤ 8π. The different cosine integral definitions are ⁡ ⁡ ⁡ .. Cin is an even, entire function.For that reason, some texts define Cin as the primary function, and derive Ci in terms of Cin .