Give the sum of the first 'n' terms of a geometric series, given 'a' as the first term and 'r' as the ratio.
Multiply a column by a row
Replace Vector Elements
Given a window, how many subsets of a vector sum positive
Sum the numbers on the main diagonal
Sum of self power series
Get the value 100
Say type of roots in quadratic equation
Get the mean digit
Alternating 1´s and 0´s in a matrix
Approximate the inverse tangent by power series
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