In calculus, a **technique of integration** is a method of evaluating a relatively difficult integral, usually by rewriting it in a simpler form.

Common techniques of integration include:

- Integration by substitution ("
*u*-substitution" in two dimensions or coordinate transformation by means of a Jacobian matrix in multivariable calculus) - Integration by parts
- Integration by partial fractions
- Integration by trigonometric substitution
- Approximation (by Taylor series or Riemann sum)

## See also

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