Back to basics 15 - classes
What is the distance from point P(x,y) to the line Ax + By + C = 0?
Perfect Square or not
Remove from a 2-D matrix all the rows that contain at least one element less than or equal to 4
Remove NaN ?
Matrix with different incremental runs
A quadrant matrix
Create a matrix X, where each column is a shifted copy of the vector v
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