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.
Project Euler: Problem 1, Multiples of 3 and 5
Back to basics 23 - Triangular matrix
Sum the rows
Perimeter of a quadrilateral
Volume of Spherical Shell
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
You can also select a web site from the following list:
Select the China site (in Chinese or English) for best site performance. Other MathWorks country sites are not optimized for visits from your location.
Contact your local office