In two-dimensional space, a ring can be constructed by using two concentric circles. Determine the area of a ring which has r1 as the inner radius and r2 as the outer radius.
Back to basics 9 - Indexed References
"Low : High - Low : High - Turn around " -- Create a subindices vector
Getting the indices from a vector
Cumulative product of a vector
Area of a circle
Perimeter of a quadrilateral
Volume of Spherical Shell
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