Overleaf is an on-line LaTeX edition tool that allows you to create LaTeX documents directly in your web browser. LateX allows you to render complex mathematical expressions in your document. It is possible to work offline and sync your copy when you're back online. It also allows you to sync with Dropbox or Git and GitHub.
Visit the website here and log in through your institutional account (Net-ID). For help on Overleaf you can use a form on Overleaf's website. For TU Delft specific questions please contact library@tudelft.nl .
Free
TU Delft is providing Overleaf Professional accounts for all students, faculty and staff. Overleaf Professional accounts provide real-time track changes, unlimited collaborators, and full document history.