slash / after text .txt

% open your file for writing
 fid = fopen('test.txt','wt');
fprintf(fid,'super\n')
 % write the matrix
 myData = randi(255,10,3);
 if fid > 0
     fprintf(fid,'%d %d %d\n',myData');
     fclose(fid);
 end

This script creates a .txt file of the following format: super, then 10x3 array

The question: how to add "/" after(down) the array? Thank you!

Answer 1

[Massimo Zanetti]

Just print it before closing the file.

% open your file for writing
fid = fopen('test.txt','wt');
fprintf(fid,'super\n');
% write the matrix
myData = randi(255,10,3);
  if fid > 0
       fprintf(fid,'%d %d %d\n',myData');
  end
fprintf(fid,'/');
fclose(fid);

[Vadim Tambovtsev]

Error using fprintf Invalid file identifier. Use fopen to generate a valid file identifier.

Error in test2 (line 10) fprintf(fid,'/');

[Massimo Zanetti]

This error does not relate to "/". You are not properly opening the txt file. Indeed, I run it and it works, look in the file attached.