I want to thank my professor with mention in my LaTeX document, so I need to add a section (without section number) "acknowledgement" before the introduction in my .
tex file . How can I write there?
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
To add a non numbered section you just use
If you want to insert this section on the table of contents, use
after the first command.