Double integral and Green's theorem

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SUMMARY

Double integrals can be calculated as line integrals using Green's Theorem, provided certain criteria are met. Specifically, the functions L and M must have continuous partial derivatives in the region bounded by a positively oriented, piecewise smooth, simple closed curve C. The discussion highlights the importance of ensuring that the double integral meets these criteria to yield a non-zero result. Additionally, challenges may arise in defining the curve C for the line integral.

PREREQUISITES
  • Understanding of Green's Theorem
  • Knowledge of double integrals
  • Familiarity with line integrals
  • Concept of continuous partial derivatives
NEXT STEPS
  • Study the application of Green's Theorem in various contexts
  • Practice calculating double integrals over rectangular regions
  • Explore examples of line integrals and their properties
  • Investigate common pitfalls in defining curves for line integrals
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Students and professionals in mathematics, particularly those studying calculus and vector analysis, as well as educators looking to enhance their understanding of integral theorems.

rashida564
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Hi everyone, I was wondering if it was possible to calculate a double integral by converting it to a line integral, using the greens theorem, and if so is it possible to get a non zero answer. if we were working on a rectangular region
 
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You have to be sure the double integral meets the Green's Theorem criteria:

https://en.wikipedia.org/wiki/Green's_theoremLet C be a positively oriented, piecewise smooth, simple closed curve in a plane, and let D be the region bounded by C. If L and M are functions of (x, y) defined on an open region containing D and having continuous partial derivatives there, then

17px-OintctrclockwiseLaTeX.svg.png
{\displaystyle (L\,dx+M\,dy)=\iint _{D}\left({\frac {\partial M}{\partial x}}-{\frac {\partial L}{\partial y}}\right)\,dx\,dy}

c
where the path of integration along C is anticlockwise.[2][3]

NOTE: had problem getting C under the line integral.
 

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