Number of digits in an integer
Relative ratio of "1" in binary number
Product of elements in row
Find Out sum of principal diagonal element of given matrix
Create a vector of the first n natural numbers (★)
Vector raised to a power, element-wise (★)
Make a checkerboard matrix (★★★★★)
Variance computation (★)
Element-wise vector product (★)
Sum of elements of a vector (★★★)
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