Line, plane, two points, three points???
I think you should put some order in your mind (and in description also) ... :)
radius of a spherical planet
Rotate a Matrix by 90 degrees
Get the elements of diagonal and antidiagonal for any m-by-n matrix
Make a vector of prime numbers
Rounding off numbers to n decimals
Calculate the area of a triangle between three points
arrangement of symbols
Replace Vector Elements
Given a number find two variables
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