please help me to write matlab code for lagrange interpolation for order 1 through 3.

please help me to write matlab code for lagrange interpolation for order 1 through 3.

Given the data

x 1 2 2.5 3 4 5 f(x) 0 5 7 6.5 2 0

Calculate f(3.4) using Lagrange interpolating polynomials of order 1 through 3. Choose the sequence of the oints for your best possible accuracy.

[Jürgen]

Hi, for me there is not enough information in your question to help you, which function do you want to integrate? regards,J

Answer 1

[Honglei Chen]

There are many Lagrange interpolation resources available online, just Google it. For example

http://www.mathworks.com/matlabcentral/fileexchange/899-lagrange-polynomial-interpolation

[Durgesh]

thanks for response. now i am sending the complete information. i am waiting your response. thanks durgesh

[Honglei Chen]

Can you show the code you have tried?