Given four coordinates, write a function to check if they form a square on the XY plane.
Find nearest prime number less than input number
Divisors of an integer
02 - Vector Variables 2
Determine the length of a string of characters
MATLAB Basic: rounding II
Approximate the inverse tangent by power series
Alternate list of elements
Ratio between sum of primes and sum of factors
Say type of roots in quadratic equation
Alternating 1´s and 0´s in a matrix
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