What are the four points Lagrange interpolation polynomial that takes some value of the function (y) at the given points and estimate the value of y (10)? - Quora
SOLVED: Q2) (25 p.) a) Use Lagrange interpolation polynomial to derive the numerical differentiation formula 2f (xo)-Sf (xoth)+4f(xo+2h)-f(xo+3h) f" (xo) = h2 b) Let f(x) = (x3 + Sx)3 use above formula
Interpolation with unequal interval
What is Lagrange's inverse interpolation formula for unequal intervals? - Quora
numerical methods - The error in lagrange interpolation - Mathematics Stack Exchange