AKA '''특이적분'''

 * 유한한 닫힌 구간에서만 정의되는 함수가 아니라거나
 * 불연속인 함수라거나
또 있나?

적분 식 앞에 [[극한,limit]]을 붙여서 정의함.

극한값이 수렴converge하거나 발산diverge함.

mklink: 무한대 infinity

[[RR:이상적분improper_integral]]

Sub:
 [[가우스_적분,Gaussian_integral]]

----
Sites:
https://tutorial.math.lamar.edu/classes/calcii/improperintegrals.aspx
https://www.sfu.ca/math-coursenotes/Math%20158%20Course%20Notes/sec_ImproperIntegrals.html

Twins:
[[WpKo:이상_적분]]
[[WpEn:Improper_integral]]
https://mathworld.wolfram.com/ImproperIntegral.html
https://encyclopediaofmath.org/wiki/Improper_integral
https://proofwiki.org/wiki/Definition:Improper_Integral
https://planetmath.org/ImproperIntegral
https://everything2.com/title/Improper+Integral (tmp)

Up: [[적분,integration]] > [[정적분,definite_integral]]
## mathworld에 의하면 정적분임.