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The latest version of the book is B11.0, released 8 days ago. If you've bought a PDF of the book and would like to update it to this version (for free), visit your home page.

By default this page displays the errata for the latest version of the book. If you have a previous version, select it here:

If you've found a new error, please submit it.

  • Typo
  • Tech. error
  • Suggestion
  • Maybe next edition
  • Not a problem
  • Reported in: B10.0 (06-Nov-19)
  • Fixed: 15-Nov-19, awaiting book release
PDF page: 140

The formula for the derivative of L w.r.t. w1 is missing. Instead there is another formula from page 136. Copy-paste?--Helge Eichhorn

Paolo Perrotta says: Fixed. Yup, I'd made a mistake in the formula files. Thank you!