*For example, student, instructor, administrator, librarian.
OpenStax at Rice University is a 501(c)(3) nonprofit charity
© 1999-2019, Rice University. Except where otherwise noted, textbooks on this site are licensed under a Creative Commons Attribution 4.0 International License.
Advanced Placement® and AP® are trademarks registered and/or owned by the College Board, which was not involved in the production of, and does not endorse, this site.