Source: Baidu Wenku
% Original code has been modified
dirMain = 'D:\test\';
fid = fopen([dirMain, 'test.txt'], 'wt'); % Create txt if the txt not exist
matrix = round(rand(4, 5) * 100);
[m, n] = size(matrix);
for i = 1 : m
for j = 1 : n
if j == n
fprintf(fid, '%4f\n', matrix(i,j)); % \n: new line
else
fprintf(fid, '%4f\t', matrix(i,j)); % \t: horizontal tab
end
end
end
fclose(fid);
Results: