MATLAB Answers

matrix....gauss elimintion

2 views (last 30 days)
masoud mansouri
masoud mansouri on 29 Nov 2015
Commented: Geoff Hayes on 2 Dec 2015
hi ... last night i wrote complete code but if i run this ...show me errors... so could you write me complete gauss elimination for matlab...that solve 3*3 matrix fun and over there matrix. thanks i sent my code for matlab.....i will wait for you
clear all
clc
c = input ('please enter matrix :'); %matris elim zarib
disp(c);
b=input('please enter matrix :'); %ansewr matrix
disp(b);
b = b';
A = [c b];
A(2,:) = A(2,:) A(1,:)/A(1,1)*A(2,1);
A(3,:) = A(3,:) A(1,:)/A(1,1)*A(3,1);
A(4,:) = A(4,:) A(1,:)/A(1,1)*A(4,1);
A(4,:) = A(4,:) A(2,:)/A(2,2)*A(4,2);
A(4,:) = A(4,:) A(3,:)/A(3,3)*A(4,2);
x(4) = A(4,5)/A(4,4)
x(3) = (A(3,5) A(3,4)*x(4))/A(3,3)
x(2) = (A(2,5) A(2,4)*x(4) A(2,3)*x(3))/A(2,2)
x(1) = (A(1,5) A(1,4)*x(4) A(1,3)*x(3))/A(2,2) A(1,2)*x(3)-A(1,1)
x = x'
when i run on the A(2,:) = A(2,:) A(1,:) at the A between )A(1 ask me what is it? when i input * / + - it's wrong..
  3 Comments
Geoff Hayes
Geoff Hayes on 2 Dec 2015
masoud - I don't understand your comment. Please post your updated code (that which you have changed) and indicate what (if any) problems or errors you are observing with it.

Sign in to comment.

Answers (0)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by