Given four coordinates, write a function to check if they form a square on the XY plane.
Create a square matrix of multiples
Try 1.5.4: Celsius to Fahrenheit
01 - Scalar variables
05 - Vector Equations 2
Alternating 1´s and 0´s in a matrix
Approximate the inverse tangent by power series
Say type of roots in quadratic equation
Ratio between sum of primer numbers and non-prime numbers
Alternate list of elements
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