(a) Write out the the general expression for the Taylor series expansion of f(x) about the point x = a. Include all terms up to the 4th order. (b) Write out the Taylor series expansion of the function f(x) = cos (x – n) about x = 7, up to the 2nd order. (c) Write out the Taylor series expansion of the function f(x) = V1+x about x = 2nd order. 0, up to the (i) Using a plotting program such as Matlab or Mathematica, plot both the original func- tion, f(x) on your plot to values between -1.0 and 1.0. = V1+ x , and the truncated Taylor series expansion. Restrict the x-range

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
icon
Related questions
Question
Many interesting problems in physics cannot be solved exactly, and we need to make (clever) ap-
proximations in order to solve them. Physicists often employ the Taylor series expansion in order
to make approximations, as it allows for the magnitude of the error introduced by the approxima-
tion to be quantified. Many students misunderstand or misuse this important tool, so it is good to
review a few examples.
Note: 'up to the nth order' means you should include the nth derivative in the expansion.
(a) Write out the the general expression for the Taylor series expansion of f(x) about the point
x = a. Include all terms up to the 4th order.
(b) Write out the Taylor series expansion of the function f(x)
the 2nd order.
= cos (x – T) about x = ™, up to
(c) Write out the Taylor series expansion of the function f(x) = /1+x about x =
0, up to the
2nd order.
(i) Using a plotting program such as Matlab or Mathematica, plot both the original func-
tion, f(x) = v1+ x , and the truncated Taylor series expansion. Restrict the x-range
on your plot to values between -1.0 and 1.0.
(ii) Calculate the definite integral (to 6-decimal precision):
r0.25
V1+x dx
(1)
-0.25
(iii) Calculate the definite integral (to 6-decimal precision) of the truncated Taylor series
expansion, using the same limits of integration.
Transcribed Image Text:Many interesting problems in physics cannot be solved exactly, and we need to make (clever) ap- proximations in order to solve them. Physicists often employ the Taylor series expansion in order to make approximations, as it allows for the magnitude of the error introduced by the approxima- tion to be quantified. Many students misunderstand or misuse this important tool, so it is good to review a few examples. Note: 'up to the nth order' means you should include the nth derivative in the expansion. (a) Write out the the general expression for the Taylor series expansion of f(x) about the point x = a. Include all terms up to the 4th order. (b) Write out the Taylor series expansion of the function f(x) the 2nd order. = cos (x – T) about x = ™, up to (c) Write out the Taylor series expansion of the function f(x) = /1+x about x = 0, up to the 2nd order. (i) Using a plotting program such as Matlab or Mathematica, plot both the original func- tion, f(x) = v1+ x , and the truncated Taylor series expansion. Restrict the x-range on your plot to values between -1.0 and 1.0. (ii) Calculate the definite integral (to 6-decimal precision): r0.25 V1+x dx (1) -0.25 (iii) Calculate the definite integral (to 6-decimal precision) of the truncated Taylor series expansion, using the same limits of integration.
Expert Solution
steps

Step by step

Solved in 3 steps

Blurred answer
Similar questions
Recommended textbooks for you
Advanced Engineering Mathematics
Advanced Engineering Mathematics
Advanced Math
ISBN:
9780470458365
Author:
Erwin Kreyszig
Publisher:
Wiley, John & Sons, Incorporated
Numerical Methods for Engineers
Numerical Methods for Engineers
Advanced Math
ISBN:
9780073397924
Author:
Steven C. Chapra Dr., Raymond P. Canale
Publisher:
McGraw-Hill Education
Introductory Mathematics for Engineering Applicat…
Introductory Mathematics for Engineering Applicat…
Advanced Math
ISBN:
9781118141809
Author:
Nathan Klingbeil
Publisher:
WILEY
Mathematics For Machine Technology
Mathematics For Machine Technology
Advanced Math
ISBN:
9781337798310
Author:
Peterson, John.
Publisher:
Cengage Learning,
Basic Technical Mathematics
Basic Technical Mathematics
Advanced Math
ISBN:
9780134437705
Author:
Washington
Publisher:
PEARSON
Topology
Topology
Advanced Math
ISBN:
9780134689517
Author:
Munkres, James R.
Publisher:
Pearson,