I think "m*n" & "1*s" (or "m×n" & "1×s") may be clearer. I read "mXn" & "1Xs" firstly as variable names.
Getting logical indexes
Remove the positive integers.
Create a vector
Square root of a number
Separate even from odd numbers in a vector - without loops
Sum of adjacent elements in a vector
Remove the air bubbles from a vector
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