Machine Learning, Deep Learning, Computer Science.
right on every single data point then it’s no longer possible to adjust the model in a way that improves the absolute error, because the error was 0. So, let’s take the two partial derivatives that make up the gradient. L(a, b) = (1/m) * SUM( | axi² + bxi — yi | ) L’a(a, b) = (1 / m) * SUM( 1 * xi²