Find the numeric mean of the prime numbers in a matrix.
Find relatively common elements in matrix rows
Rotate input square matrix 90 degrees CCW without rot90
Sum the entries of each column of a matrix which satisfy a logical condition.
List the good primes
Solve a Weird Calculator puzzle
Construct finite difference approximations of derivatives
List the delete-a-digit primes
Determine whether a number is a prime self number
Find the treasures in MATLAB Central and discover how the community can help you!
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