The concept of Lagrange interpolation is easily understood with help of the following figure.
In the figure, three points of the data "x" and "y" from a given Excel file are marked.
Their relationship with the "xi" and "yi" is described in the 2D-LAGRANGE by using the following equations in MATLAB.
With a Lagrange polynomial of degree 1 is given by:
Note 6add127376 zophlazh