MATLAB: Newline in text files

MATLABtext file

Hi!
I am very sorry to post this question, because it has already been answered multiple times in this forum. Unfortunately, the presented solution doesn't work for me. So, I am wondering what's going wrong.
I want to write some parameters in a .tex file. Following the hints in the mentioned posts, I opened my testfile with the option 'wt' to make sure that my newlines '\n' are recognized 
fid1 = fopen('Testfile.txt','wt');
fprintf(fid1,'%s','abc');
fprintf(fid1,'%s','\n');
fprintf(fid1,'%s','def');
fprintf(fid1,'%s','\n');
fprintf(fid1,'%s','ghi \n jkl');
fclose(fid1);
But, independently of what I do, I obtain
abc\ndef\nghi \n klm
once I open 'Testfile.txt'.
Opening the file with 'w' and using additonally '\r' doesn't work either.
So, I am grateful for any hints that might help solving the problem!
Thank you in advance!

Best Answer

When I want to explicitly write \n for new-line I include it explicitly in the string-specification:
fid1 = fopen('Testfile.txt','wt');
fprintf(fid1,'%s\n','abc');
fprintf(fid1,'%s\n','def');
fprintf(fid1,'%s\n%s','ghi','jkl');
fclose(fid1);
But since you write to a .tex-file this is only important if you do it in some environment like verbatim that will respect the new-lines for the output. Otherwise you could run with \\, depending on how that is propagating to the .tex-file you might have to have 4 consecutive \ to get \\ written to file.
HTH
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