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QUESTION 4 Modify the function file gauss_seidel.m to produce a new function file jacobi.m that implements the Jacobi method. Now use the Jacobi method to solve example 3.2.1, i.e. 20х, + X2 - x, = 17 х, — 10х, + X3 = 13 - - x, + x, +10x, = 18.

QUESTION 4 Modify the function file gauss_seidel.m to produce a new function file jacobi.m that implements the Jacobi method. Now use the Jacobi method to solve example 3.2.1, i.e. 20х, + X2 - x, = 17 х, — 10х, + X3 = 13 - - x, + x, +10x, = 18.

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Please use Octave or Matlab - I use Octave so that is preferable

Gauss Seidel function file:

function xnew=gauss_seidel(A,b,xold) n=size(A)(1);

At=A;
xnew=xold;

for k=1:n At(k,k)=0;

end
for k=1:n

xnew(k)=(b(k)-At(k,:)*xnew)/A(k,k); end

endfunction

QUESTION 4 Modify the function file gauss_seidel.m to produce a new function file jacobi.m that implements the Jacobi method. Now use the Jacobi method to solve example 3.2.1, i.e. 20х, + X2 - x = 17 х, — 10х, + X3 = 13 -x, + x, +10x, = 18.
Transcribed Image Text:QUESTION 4 Modify the function file gauss_seidel.m to produce a new function file jacobi.m that implements the Jacobi method. Now use the Jacobi method to solve example 3.2.1, i.e. 20х, + X2 - x = 17 х, — 10х, + X3 = 13 -x, + x, +10x, = 18.
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