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The gradient is a fancy word for derivative, or the rate of change of a function. Itâs a vector (a direction to move) that. 1  Points in the direction of greatest increase of a function (intuition on why)  Is zero at a local maximum or local minimum (because there is no single direction of increase)
An Introduction to Gradient Descent and Linear Regression. Gradient descent is one of those âgreatest hitsâ algorithms that can offer a new perspective for solving problems. Unfortunately, itâs rarely taught in undergraduate computer science programs.