When the input is certainly not the global variable z, your function must return false. Otherwise return true. All inputs & variable values will be scalar.
Find common elements in matrix rows
Get the area codes from a list of phone numbers
Top of the Hour : Return from your routine within 1 second of the hour
Create incremental spiral WITHOUT USING EVAL or FEVAL
Generate a string like abbcccddddeeeee
Curve fitting (linear functions) & function handles
Arrange the names in alphabetical order (2)
Just take it easy for a second or two!
Wait a second!
The other half of the Fibonacci sequence
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