Machine Learning, Data Science, Dimensionality Reduction, Intuition, Linear Algebra.
row contains the x-coordinates of every example (day), one in each column. This means that the x, y, and z coordinates of the first point are the values of the x-coordinate of Day 1, Day 2 and Day 3 in the old matrix, respectively. Likewise, the second row has the y’s. If we have more than three