Last time we took a look at how we can use linear interpolation to approximate a function from a set of points on its graph by connecting them with straight lines. As a consequence the result isn't smooth, meaning that its derivative isn't continuous and is undefined at the

In this post we shall see how we can define a smooth interpolation by connecting the points with curves rather than straight lines.

*x*values of the points, known as the nodes of the interpolation.In this post we shall see how we can define a smooth interpolation by connecting the points with curves rather than straight lines.

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