NGE

Naive Gauss Elimination on matlab and solve Ax=b simultaneous equation model

Basic Idea

The Psedocode of this code is

Discription

• First

  Get Matrix A and b.

       coe = readmatrix('A.xlsx');     
       con = readmatrix('b.xlsx');
  

  In this way you should make 'Excel file' and input values there. That's what I do.

  Or You can get A and b directly

       coe = [A1 A2 A3 (...); (...); ];     
       con = [b1 ; b2; b3; (...) ];  
  

• Second

  Program will run and show Upper Triangular Matrix and and answer

• Third

  Actually, there is better way to solve simultaneous equation You can use "backslash \"

       Xprof= (coe\con).' 
  

  If you add this line to your script file, you can see that answer is same.

Others..

• I uploaded only function m-file. So, you should write your own script m-file.
• I made this code to do my college assignment.
• I use Excel to input values, because it is inconvenient to enter a matrix in a matlab.
• I am hoping that my code can help other undergraduate students' assignments.