Given four coordinates, write a function to check if they form a square on the XY plane.
Add two numbers
Is this matrix orthogonal?
Duplicate each element of a vector.
Is it a number?
06 - Matrix Equations 3
Ratio between sum of primer numbers and non-prime numbers
Double the next!
Alternate list of elements
Say type of roots in quadratic equation
Approximate the inverse tangent by power series
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