Author(s): Sujeeth Kumaravel Originally published on Towards AI. Consider the function: Its graph is: The derivative of a function at a point is the slope of the tangent to the function at that point. For this function, the derivative exists at all …

Author(s): Sujeeth Kumaravel Originally published on Towards AI. What is a tangent to a function f(x) at point x? It is the line that touches the function only at point x. It doesn’t intersect the function at any other point x2, which …