Normal Equation
2017-12-25 本文已影响0人
jianshuqwerty
normal equation
GD&Normal Equation对比
With the normal equation, computing the inversion has complexity O(n3). So if we have a very large number of features, the normal equation will be slow. In practice, when n exceeds 10,000 it might be a good time to go from a normal solution to gradient Descent.
