Data Science, Introduction, Eigenvectors, Eigenvalue, Eli5.
so that we can just rotate the new larger VicVac V’’ (gray), to get our desired final VicVac V’ (red). Again, note that we dont change the size of the VicVac during this step. Thus, the action of Magic Compass (MC) on VicVac (V) can be broken as combination of two actions: Pure Scaling, i.e. change