Let fe C[a, b] and ro E [a, b]. In this problem, we derive a difference formula to approxi- mate f"(ro). (a) Let f(z) = P3(x) + R(x), where P3(x) is the fourth Taylor Polynomial of f about zo. Find out the expressions of P3(r) and R(x). (b) Assume that for small h > 0, xo + h e [a, b]. Compute f(xo + h) + f(xo – h) in terms of the Taylor Polynomial P3 obtained in part (a). (c) Using the result in part (b), derive a difference formula to approximate f"(ro). Find out the leading order of h in the truncation error.
Let fe C[a, b] and ro E [a, b]. In this problem, we derive a difference formula to approxi- mate f"(ro). (a) Let f(z) = P3(x) + R(x), where P3(x) is the fourth Taylor Polynomial of f about zo. Find out the expressions of P3(r) and R(x). (b) Assume that for small h > 0, xo + h e [a, b]. Compute f(xo + h) + f(xo – h) in terms of the Taylor Polynomial P3 obtained in part (a). (c) Using the result in part (b), derive a difference formula to approximate f"(ro). Find out the leading order of h in the truncation error.
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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