Question

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PART 3 – Output matrix data to text files using low-level File I/O What happens when you try to use the dlmwrite function with a delimiter that is more than one character? For example, say we require that the file must have two pipe symbols (I 1) between each value? For this part, you will need to output a magic square to a text file, but you will need to use low-level File I/O functions so that you can incorporate dual pipe symbols between values. Ensure there are no pipe characters at the start or end of the line. An example of the file for a 5x5 magic square is shown. You can generate a magic square of any size using the built-in magic function. 17||24||1||8||15 23||5||7||14||16 4||6||13||20||22 10||12||19||21||3 11||18||25||2||9 You will need to show your tutor at least 2 sizes of magic squares saved to a file in this way. You may want to read through the help file “Export to Text Data Files with Low-Level 1/0” at: http://au.mathworks.com/help/matlab/import export/writing-to-text-data-files-with-low-level-io.html. You may also want to read the low-level File I/O documentation for functions such as fopen, fclose & fprintf.

Answer 1

`Hey,

Note: Brother if you have any queries related the answer please do comment. I would be very happy to resolve all your queries.

clc
clear all
close all
n=5;
A=magic(n);
s=sprintf('magic%d.txt',n);
fid=fopen(s,'w');
for i=1:n
for j=1:n-1
fprintf(fid,'%d||',A(i,j));
end
fprintf(fid,'%d\n',A(n,n));
end
fclose(fid);
disp(s);
type(s);
n=6;

A=magic(n);
s=sprintf('magic%d.txt',n);
fid=fopen(s,'w');
for i=1:n
for j=1:n-1
fprintf(fid,'%d||',A(i,j));
end
fprintf(fid,'%d\n',A(n,n));
end
fclose(fid);
fprintf('\n\n');
disp(s);
type(s);

Kindly revert for any queries

Thanks.