9. Recall that we can define an inner product on the set of piecewise continuous functions PC [a, b] as follows: a. (fig) = ["f(x = and we can define a norm on the same set as: ||f|| = √(f, f) Legendre polynomials arise as solutions to a differential equation (1 – t²)y" — 2ty' + n(n + 1)y = 0 Where an explicit formula for the polynomials is given by: 1 dn -(t²-1) n b. P₂ (t): f(x)g(x)dx = a 2nn! dtn 3 — Show he Legendre polynomials P₂ (t) = ² and P₂ (t) = t³-t are orthog nal on the interval [-1,1]. 2 Compute the norm: ||P3 (t)|| on the same interval.
9. Recall that we can define an inner product on the set of piecewise continuous functions PC [a, b] as follows: a. (fig) = ["f(x = and we can define a norm on the same set as: ||f|| = √(f, f) Legendre polynomials arise as solutions to a differential equation (1 – t²)y" — 2ty' + n(n + 1)y = 0 Where an explicit formula for the polynomials is given by: 1 dn -(t²-1) n b. P₂ (t): f(x)g(x)dx = a 2nn! dtn 3 — Show he Legendre polynomials P₂ (t) = ² and P₂ (t) = t³-t are orthog nal on the interval [-1,1]. 2 Compute the norm: ||P3 (t)|| on the same interval.
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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![9. Recall that we can define an inner product on the set of piecewise continuous
functions PC [a, b] as follows:
a.
(f,g) = f*f(x)g(x)dx
and we can define a norm on the same set as:
||f|| = √(f, f)
Legendre polynomials arise as solutions to a differential equation
(1 - t²)y" — 2ty' + n(n + 1)y = 0
Where an ex licit formula for the polynomials is given by:
1 dn
P₁ (t) =
-(t²-1)"
t² — and P3 (t) = t³ - ²/t
b.
2"n! dtn
Show the Legendre polynomials P₂ (t)
orthog nal on the interval [-1,1].
a
Compute the norm: ||P3 (t)|| on the same interval.
t are](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9454a43d-48d8-460c-9970-8c1a520f5a48%2Fca53a0a8-9acb-4209-acf0-50a2e6b30d6e%2Fnuj15pc_processed.jpeg&w=3840&q=75)
Transcribed Image Text:9. Recall that we can define an inner product on the set of piecewise continuous
functions PC [a, b] as follows:
a.
(f,g) = f*f(x)g(x)dx
and we can define a norm on the same set as:
||f|| = √(f, f)
Legendre polynomials arise as solutions to a differential equation
(1 - t²)y" — 2ty' + n(n + 1)y = 0
Where an ex licit formula for the polynomials is given by:
1 dn
P₁ (t) =
-(t²-1)"
t² — and P3 (t) = t³ - ²/t
b.
2"n! dtn
Show the Legendre polynomials P₂ (t)
orthog nal on the interval [-1,1].
a
Compute the norm: ||P3 (t)|| on the same interval.
t are
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