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  2. List of integrals of trigonometric functions - Wikipedia

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

    For antiderivatives involving both exponential and trigonometric functions, see List of integrals of exponential functions. For a complete list of antiderivative functions, see Lists of integrals. For the special antiderivatives involving trigonometric functions, see Trigonometric integral. [1]

  3. Trigonometric substitution - Wikipedia

    en.wikipedia.org/wiki/Trigonometric_substitution

    For a definite integral, one must figure out how the bounds of integration change. For example, as x {\displaystyle x} goes from 0 {\displaystyle 0} to a / 2 , {\displaystyle a/2,} then sin ⁡ θ {\displaystyle \sin \theta } goes from 0 {\displaystyle 0} to 1 / 2 , {\displaystyle 1/2,} so θ {\displaystyle \theta } goes from 0 {\displaystyle 0 ...

  4. Tangent half-angle substitution - Wikipedia

    en.wikipedia.org/wiki/Tangent_half-angle...

    Leonhard Euler used it to evaluate the integral / (+ ⁡) in his 1768 integral calculus textbook, [3] and Adrien-Marie Legendre described the general method in 1817. [4] The substitution is described in most integral calculus textbooks since the late 19th century, usually without any special name. [5]

  5. Lists of integrals - Wikipedia

    en.wikipedia.org/wiki/Lists_of_integrals

    If the function f does not have any continuous antiderivative which takes the value zero at the zeros of f (this is the case for the sine and the cosine functions), then sgn(f(x)) ∫ f(x) dx is an antiderivative of f on every interval on which f is not zero, but may be discontinuous at the points where f(x) = 0.

  6. Trigonometric integral - Wikipedia

    en.wikipedia.org/wiki/Trigonometric_integral

    Si(x) (blue) and Ci(x) (green) shown on the same plot. Sine integral in the complex plane, plotted with a variant of domain coloring. Cosine integral in the complex plane. Note the branch cut along the negative real axis. In mathematics, trigonometric integrals are a family of nonelementary integrals involving trigonometric functions.

  7. Integration by substitution - Wikipedia

    en.wikipedia.org/wiki/Integration_by_substitution

    1.5 Examples: Definite integrals. 1.5.1 Example 1. 1.5.2 Example 2: Trigonometric substitution. ... Let φ : XY be an absolutely continuous function ...

  8. List of integrals of inverse hyperbolic functions - Wikipedia

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

    For a complete list of integral formulas, see lists of integrals. In all formulas the constant a is assumed to be nonzero, and C denotes the constant of integration. For each inverse hyperbolic integration formula below there is a corresponding formula in the list of integrals of inverse trigonometric functions.

  9. Borwein integral - Wikipedia

    en.wikipedia.org/wiki/Borwein_integral

    In this case, ⁠ 1 / 3 ⁠ + ⁠ 1 / 5 ⁠ + … + ⁠ 1 / 111 ⁠ < 2, but ⁠ 1 / 3 ⁠ + ⁠ 1 / 5 ⁠ + … + ⁠ 1 / 113 ⁠ > 2. The exact answer can be calculated using the general formula provided in the next section, and a representation of it is shown below. Fully expanded, this value turns into a fraction that involves two 2736 ...