Satyabrat sahu
August 2023
1
,Double Integration Handout Let’s crack it
What is Double Integration
Double integration is a mathematical concept used in
calculus to calculate the accumulated effect of a func-
tion over a two-dimensional region in space, typically
represented on a plane. It extends the idea of a single
integral, which computes the area under a curve in one
dimension, to compute the volume under a surface in two
dimensions.
Prerequisite for Double Integration
Basic prerequisite for Double Integration is you need
to learn Single Integration before and with a deep
knowledge in Single Integration.
Significance of Double Integration
How could we identify that it is ”Double Integra-
tion”
As in class 12th we have already studied about
INTEGRATION in maths and most of you have solved
so many poblems in Integration
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, Double Integration Handout Let’s crack it
R In class 12th, We have saw this type of Integration
f (x)dx. This is called Single Integration.
Basically double integration is like this but two
integral sign will be placed there,
RR
f (x)dxdy
Like this.
Basics rule of Double Integration
Function of Two Variable
Start with a real-valued function f(x,y) that depends on
two variables, x and y. This function might represent
a surface or a field in two dimensions.
Region of Integration
Define a region D in the R2 − plane over which you want
to integrate the function. This region is usually defined
by specific boundaries or inequalities for x and y.
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