Links

Maths

• Everything Group Theory related

• False Proofs

• Notes on Numbers and Fields

• Notes on just on about everything by Karl Dahlke

• Mathematics entry to the Github “awesome” series

• The University of Pennsylvania page of the late Herbert Wilf, generatingfunctionology along with some other of his books are provided free of charge here

• “What Is” articles by Nick Higham - a lot of stuff on linear algebra and matrix analysis

• Formulae Grimoire by Fredrik Johansson

• An Infinitely Large Napkin by Evan Chen

Programming

• Blog post on Contributing to Emacs / And Another

• Character Sets by Joel Spolsky

• Emacs Bug Tracker

• Isolation in DBs by Martin Kleppmann

• Miscelleneous Programs Written by Donald Knuth

Question Sources

• Project Euler

• MathsChallenge

• University of Michigan Maths Challenge

• Virginia Tech Maths Contest

• Questions from the TSR thread “The Proof is Trivial”

• Loughborough Undergraduate Christmas Challenge

• Rosalind: a platform for learning bioinformatics through computational problem solving

• IBM monthly puzzles (Ponder This)

• Jaap’s Puzzle Page

• Monthly Maths Riddles by Michael Brand (Inactive)

• Jane Street Puzzles

• Cryptohack: learn modern cryptography

• Berkeley Puzzles

Blogs

• Beni Bogoşel’s Blog

• Laurent Mazare’s Blog (inactive)

• Nicholas Miklaucic’s Blog

• Muthveerappanr’s Blog

• nickdrozd’s Blog

• Shawn Ligocki’s Blog

• Aaron Meurer’s Blog

• Griff’s Blog

• smsxgz’s Blog

• Jeremy Kun’s Blog