Most nonzero elements in row
Which doors are open?
Return 'on' or 'off'
Can we make a triangle?
Sum of terms in a series 1 (★★★)
Create a vector of n alternating ones and minus ones (★★)
Get the elements of diagonal and antidiagonal for any m-by-n matrix (★★★★)
Generate a vector which contains a pyramid pattern (★★★★)
How to locate the position of an element in a vector without using the find function
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