Getting the indices from a vector
Sum the numbers on the main diagonal
Do you like your boss?
Times 3 problem
Select every other element of a vector (★★)
Generate a vector which contains a pyramid pattern (★★★★)
Magnitude of a vector (★★★)
Sum of elements in a vector (★)
How to locate the position of an element in a vector without using the find function
Vector raised to a power, element-wise (★)
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