Lists of errors maintained on LeMoDa.net.

• Notes on "Theory of Lie Groups" by Chevalley (7 December 2025)
• Errata for "A Textbook on Analytic Geometry" by Mamelak (4 December 2025)
• Errata for Spivak Combined Answer Book for Calculus (1 December 2025)
• St Andrews Maths History Errata (14 September 2025)
• Errata for "Differential Geometry of Curves and Surfaces" by Do Carmo (30 July 2024)
• Errata for Linear Algebra by Serge Lang, 3rd edition (6 April 2023)
• No more moves! in Microsoft Patience game (29 June 2017)
• HTML blocks in Perl aren't well supported (9 January 2017)
• Errors in the Moby mpron list (2 November 2013)
• Testing Stirling's approximation (14 February 2013)
• Error list for Moby project's mhyph.txt (27 June 2011)