How do you put it in matrix in Microsoft excel?

A spline is a flexible strip of metal or other material, that may be bent into a curve and used in a similar manner to a ruler to draw smooth curves between points 1. The physical tool of spline has been modeled as a wide class of functions that are used in applications requiring data interpolation and/or smoothing. Spline functions for interpolation are normally determined as the minimizers of suitable measures of roughness (for example integral squared curvature) subject to the interpolation constraints. For a number meaningful definitions of the roughness measure, the spline functions are found to be finite dimensional in nature, which is the primary reason for their utility in computations and representation. In this project, we focus on one-dimensional, polynomial sp use the term "spline" in this restricted sense. lines and The simplest spline is a piecewise polynomial function, with each polynomial h a single variable. On the other hand, a function is said to be in C*a, b] if the function and its derivatives of orders up to k are continuous. Among many pos cubic spline is one the most commonly used. Given n +1 points (ri, u) where a ro 21