In the previous blog, we spelled out the bubble sort algorithm for putting an array of numbers in an ascending order. In this post, I am posting the matlab program. It is better to **download** the program as single quotes in the pasted version do not translate properly when pasted into a mfile editor of MATLAB or see the **html version **for clarity and sample output.

%% PUTTING AN VECTOR OF NUMBERS IN AN ASCENDING ORDER?

% Language : Matlab 2007a

% Authors : Autar Kaw

% Last Revised : November 8, 2009

% Abstract: This program shows you how to put a vector

% of numbers in an ascending order using the bubble sort method

clc

clear all

disp(‘This program shows the bubble sort method’)

disp(‘to put a vector of numbers in an ‘)

disp(‘ascending order’)

disp(‘Matlab 2007a’)

disp(‘Authors : Autar Kaw’)

disp(‘Last Revised : November 8, 2009’)

disp(‘http://numericalmethods.eng.usf.edu’)

disp(‘ ‘)

%% INPUTS

% The vector of numbers

disp (‘INPUTS’)

disp(‘Input the vector of numbers’)

A=[18 7 6 15 4 13];

disp(A)

%% SOLUTION

% Number of entries, n

n=length(A);

% making (n-1) passes

for j=1:1:n-1

% comparing each number with the next and swapping

for i=1:1:n-1

if A(i)>A(i+1);

% temp is a variable where the numbers are kept

% temporarily for the switch

temp=A(i);

A(i)=A(i+1);

A(i+1)=temp;

end

end

end

%% OUTPUT

disp(‘ ‘)

disp (‘OUTPUT’)

disp (‘The ascending matrix is’)

disp(A)

_______________________________________________________

This post is brought to you by Holistic Numerical Methods: Numerical Methods for the STEM undergraduate at http://numericalmethods.eng.usf.edu, the textbook on Numerical Methods with Applications available from the lulu storefront, and the YouTube video lectures available at http://numericalmethods.eng.usf.edu/videos and http://www.youtube.com/numericalmethodsguy

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