This is a bit tricky, because you have to know that to print out a ‘%’ as literal output in fprintf or sprintf output, you need to enter ‘%%’. So your format string (including the double ‘\\’ to output a newline character) is in the ‘fmt’ assignment here:
fieldwidth = 10;
fmt = sprintf('Your number is %%%dd \\n',fieldwidth);
x = randi(1E10);
fprintf(fmt,x)
Adapt it as necessary to your own code. Also, look at ‘fmt’ to see what the sprintf call produces.
