【机器学习】-Week2 2. 多变量线性回归 梯度下降

Gradient Descent for Multiple Variables

The gradient descent equation itself is generally the same form; we just have to repeat it for our 'n' features:

In other words:

The following image compares gradient descent with one variable to gradient descent with multiple variables:

来源：coursera 斯坦福 吴恩达 机器学习