Use a Lagrange interpolating polynomial to approximate the derivative of the function tabulated below as follows: • (a) Determine the quadratic (2nd order) Lagrange polynomial, f2(x), through the points tabulated on the left for the function, f (x). (b) Determine the derivative of the polynomial, f(z). i *; f(x:) 0 -h_fo dz • (c) Use the result of (b) to approximate the derivative of the function, f (x), at x=L, =0: f(x) ~= 5:(x). Write the approximation in a form that lets dz dz h f2 you recognize the answer to (d) below. (d) What is the name of the result obtained in (c)? 2)
Use a Lagrange interpolating polynomial to approximate the derivative of the function tabulated below as follows: • (a) Determine the quadratic (2nd order) Lagrange polynomial, f2(x), through the points tabulated on the left for the function, f (x). (b) Determine the derivative of the polynomial, f(z). i *; f(x:) 0 -h_fo dz • (c) Use the result of (b) to approximate the derivative of the function, f (x), at x=L, =0: f(x) ~= 5:(x). Write the approximation in a form that lets dz dz h f2 you recognize the answer to (d) below. (d) What is the name of the result obtained in (c)? 2)
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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