How to find the position of an element in a vector without using the find function
Remove NaN ?
Reindex a vector
Finding perimeter of a rectangle
factorial of a number x
Make a checkerboard matrix (★★★★★)
Prime number check (★★)
Remove the row average (★★★)
Doubling elements in a vector (★★)
Generate a vector which contains a pyramid pattern (★★★★)
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