Lagrangian interpolation:
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
Related questions
Question
using
![Lagrangian interpolation:
Ex/ Calculate y(4) from the following data:
3
1
7
13
y
2
5
12
20
In M-file with name
Lagrng":
function Lagrng(x,y,xx)
n=length(x);
sum = 0;
for i = 1:n
product=y(i);
for j=1:n
if i ~= j
product = product*(xx-x(j))/(x(i)-x(j));
end
end
sum=sum+product;
end
Lagrng=sum
In command window type:
x=[1 37 13];
y=[2 5 12 20];
Lagrng(x,y,4)
Answer
Lagrng =
6.6875](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F05453086-d022-4cbd-8337-2d454d2695eb%2F9a209942-7934-466d-a5cc-2a7ab1ccd5f8%2Fg35knbh_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Lagrangian interpolation:
Ex/ Calculate y(4) from the following data:
3
1
7
13
y
2
5
12
20
In M-file with name
Lagrng":
function Lagrng(x,y,xx)
n=length(x);
sum = 0;
for i = 1:n
product=y(i);
for j=1:n
if i ~= j
product = product*(xx-x(j))/(x(i)-x(j));
end
end
sum=sum+product;
end
Lagrng=sum
In command window type:
x=[1 37 13];
y=[2 5 12 20];
Lagrng(x,y,4)
Answer
Lagrng =
6.6875
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