This solution is outdated. To rescore this solution, sign in.
Which doors are open?
Test for balanced parentheses
Tell me the slope
Change the sign of even index entries of the reversed vector
Select every other element of a vector
Find the peak 3n+1 sequence value
Counting in Finnish
It dseon't mettar waht oedrr the lrettes in a wrod are.
Find the numeric mean of the prime numbers in a matrix.
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