How to find the position of an element in a vector without using the find function
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Vectorize the digits of an Integer
Create an array (n,n) where only diagonal elements are '1' and others are '0'
Make roundn function
Approximate the inverse tangent by power series
Ratio between sums of prime and non-prime numbers
Check if is a square
Sum of a geometric series
Alternating 1´s and 0´s in a matrix
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