a first-order method for approximating f" (x) which uses the data (a) Develop f (r - 4h), f (x + 3h), f (x) and f (r+ 5h).

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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4 a
(a) Develop a first-order method for approximating f" (x) which uses the data
f (x – 4h), f (x + 3h), f (x) and f (x +5h).
(b) Using the most accurate centered difference formula, approximate f" (1) and
then state the error in the approximation, given f (x) = cos (z) + x, for each
he {0.1,0.01, 0.001}. Use an accuracy of 6 digits throughout.
Transcribed Image Text:(a) Develop a first-order method for approximating f" (x) which uses the data f (x – 4h), f (x + 3h), f (x) and f (x +5h). (b) Using the most accurate centered difference formula, approximate f" (1) and then state the error in the approximation, given f (x) = cos (z) + x, for each he {0.1,0.01, 0.001}. Use an accuracy of 6 digits throughout.
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