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{{Template:Math-h}}
{{Math-h}}
A '''definite integral''' is an [[integral]] with upper and lower limits.
A '''definite integral''' is an [[integral]] with upper and lower limits.
Solving a definite integral usually has two main steps: [[integration]] and [[subtraction]].
Solving a definite integral usually has two main steps: [[integration]] and [[subtraction]].
Sometimes approximations, such as the Riemann Integral or [[Simpson's rule]] are used. These approximations are used when:
*The exact answer is not needed, only a close approximation. (Common in [[Engineering]])
*The rule for integration is very complex. (Such as <math>\int e^{x^2}\,dx</math>)
*The rule for integration is simply unknown. (Such as <math>\int \zeta(x)\,dx</math>, the [[Zeta function]])
== Example 1==
== Example 1==
* <math>ln|6|</math> becomes positive because it was <math>-(-ln|6|)</math>
* <math>ln|6|</math> becomes positive because it was <math>-(-ln|6|)</math>
== See Also ==
== See also ==
*[[Integral]]
*[[Integral]]
*[[Indefinite integral]]
*[[Indefinite integral]]
[[Category:integration]]
[[Category:Calculus]]
[[Category:Integration]]