Write down the first four terms of the Taylor series expansion of the function x(t-h) about x(t), and the first three terms of the expansion of the function (t-h) dt about x(t). Use these two equations to eliminate d²x (1) (1) and d' d³x (1) dt³ dt² from the Taylor series expansion of the function x(t + h) about x(t). Show that the resulting formula is Xn+1 = -4X₁ + 5X-1 + h(4F + 2F-1) + O(h*) Show that this method is a linear combination of the second-order Adams-Bashforth method and the central difference method (that is, the scheme based on (2.9)). What do you think, in view of this, might be its disadvantages?

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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2.3.9
Write down the first four terms of the Taylor series
expansion of the function x(t-h) about x(t), and the
first three terms of the expansion of the function
dx
dt
(t-h)
about x(t). Use these two equations to eliminate
d²x (t) and
d³x
dt³
(t)
dt²
from the Taylor series expansion of the function
x(t + h) about x(t). Show that the resulting formula is
Xn+1 = -4X + 5X-1 + h(4F + 2F-1) + 0(ht)
Show that this method is a linear combination of the
second-order Adams-Bashforth method and the
central difference method (that is, the scheme based
on (2.9)). What do you think, in view of this, might
be its disadvantages?
Transcribed Image Text:2.3.9 Write down the first four terms of the Taylor series expansion of the function x(t-h) about x(t), and the first three terms of the expansion of the function dx dt (t-h) about x(t). Use these two equations to eliminate d²x (t) and d³x dt³ (t) dt² from the Taylor series expansion of the function x(t + h) about x(t). Show that the resulting formula is Xn+1 = -4X + 5X-1 + h(4F + 2F-1) + 0(ht) Show that this method is a linear combination of the second-order Adams-Bashforth method and the central difference method (that is, the scheme based on (2.9)). What do you think, in view of this, might be its disadvantages?
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