Question

Runge's function is written as:

f(x) =

1/1 +25*x^2

Generate five equidistantly spaced values of this function over the interval: [-1, 1).

Fit these data with (a)a fourth order polynomial,

(b)a linear spline, and

(c)a cubic spline. Present your results graphically.​
(MATLAB)

Answer 1

A linear spline and a cubic metre