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littybriedan
littybriedan littybriedan
  • 30-07-2016
  • Mathematics
Answered

When changing an integral to polar coordinates, DxDy becomes rDrDtheta. Can anyone give a satisfying explanation for where this r comes from?

Verified Answer :

Hussain514 Hussain514
  • 01-08-2016

"The differential dx dy represents an element of area in cartesian coordinates, with the domain of integration extending over the entire xy-plane. An alternative representation of the last integral can be expressed in plane polar coordinates r, θθ"

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