Contact & corrections
Found something wrong? Good.
Mathematics improves when somebody points at the mistake. So do websites.
Website corrections
For corrections to this companion site, bibliographic questions, broken links, or contributor information, contact James P. Howard, II.
Book errata
If you are reporting a possible correction to one of the books, please include the edition, chapter number, page or section if known, and enough context to identify the issue. Confirmed corrections can be published on the errata page.
Publisher matters
Orders, permissions, accessibility requests for the published books, and publisher-controlled electronic editions should be directed to CRC Press / Routledge through the relevant edition's publisher page.