Spherical and cylindrical coordinates, not a problem

[seto6]

Homework Statement

do we only use spherical and cylindrical coordinates for triple integrals? or for double too?


thanks for your replies in advance

 

[lanedance]

Depends on the integral in question & purpose

As they are 3 dimensional coordinate systems, they are often used in "triple integrals" for volumetric evaluation

But for example if you were integrating to find the surface area of a sphere in 3D, this would be evaluated as a "double integral" in spherical coordinates