Previously, we talked about how to think about gradient descent when moving along a 3D cost curve. In this lesson, we'll learn about gradient descent in three dimensions, but let's first remember how ...

A tangent to a circle at point P is a straight line that touches the circle at P. The tangent is perpendicular to the radius which joins the centre of the circle to the point P. As the tangent is a ...

Recall that gradient descent is a numerical approximation method for finding optimized solutions to problems with no closed form. That is, some mathematical problems are very easy to solve ...