I finally understood your problem. The problem description needs some adjustment. It is not clear that it is requesting only the global variable named 'z'. I thought it was referring to every global variable.
Matrix with different incremental runs
Return the Fibonacci Sequence
matrix of natural number
Say something funny
Seemingly impossible problem
Code breaker, Part I: Operation Phoenix
Back to basics: throwing errors / exceptions
"Percentages may not total 100 due to rounding"
The other half of the Fibonacci sequence
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