This would be better as "find the nth element of an array." Also, a column matrix doesn't exist. Perhaps you meant column vector, though the variables in your test cases are row vectors.
Given a window, how many subsets of a vector sum positive
Duplicate each element of a vector.
Given a 4x4 matrix, swap the two middle columns
Rotate a matrix for 180 degree
Transpose of matrix
Calculating selling price
Find the last digit
Find remainder when x is divided by 3
modulus of a number
multiply an array by its position number
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