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    Mathematics & Theoretical CS

    185 videos · 1,587 books · 277 blogs

    Algorithms & data structuresComputability & complexity theoryQuantum computingPure mathematicsProbability & game theoryRecreational & visual mathLogic & formal methodsInformation theory & signal processingMath & theory (other)
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    Vectors | Chapter 1, Essence of linear algebra

    HN's go-to recommendation for learning linear algebra intuition, repeatedly credited with making concepts click and complementing textbooks.

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    Videos

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    59:34

    CppCon 2017: Matt Kulukundis “Designing a Fast, Efficient, Cache-friendly Hash Table, Step by Step”

    CppCon
    137k views • 9 years ago
    1:07:02

    Stanford Lecture: Don Knuth—"A Conjecture That Had To Be True" (2017)

    Stanford Online
    30k views • 8 years ago
    11:15

    The hardest problem on the hardest test

    3Blue1Brown
    16M views • 8 years ago
    26:33

    The Most Underrated Algorithm

    Veritasium
    11M views • 4 years ago
    25:13

    Thinking outside the 10-dimensional box

    3Blue1Brown
    3.2M views • 9 years ago
    51:16

    Why can't you multiply vectors?

    Freya Holmér
    525k views • 3 years ago
    4:08

    e^(iπ) in 3.14 minutes, using dynamics | DE5

    3Blue1Brown
    3.4M views • 7 years ago
    1:02:15

    Lambda Calculus - Fundamentals of Lambda Calculus & Functional Programming in JavaScript

    Fullstack Academy
    228k views • 9 years ago

    Books

    See all
    Cover of Effective Modern C++2014–2026

    Effective Modern C++

    Scott Meyers
    63 recommend · 127
    Cover of The Little Schemer2007–2026

    The Little Schemer

    Daniel P. Friedman
    288 recommend · 652
    Cover of Gödel, Escher, Bach2007–2026

    Gödel, Escher, Bach

    Douglas R. Hofstadter
    505 recommend · 1.4k
    Cover of On LISP2007–2026

    On LISP

    Paul Graham
    192 recommend · 533
    Cover of Convex optimization2009–2026

    Convex optimization

    Stephen P. Boyd
    40 recommend · 66
    Cover of Real World OCaml2012–2026

    Real World OCaml

    Yaron Minsky
    69 recommend · 142
    Cover of Code Complete2007–2026

    Code Complete

    Steve McConnell
    393 recommend · 894
    Cover of The Road to Reality2007–2026

    The Road to Reality

    Roger Penrose
    67 recommend · 153
    Cover of A pattern language2007–2026

    A pattern language

    Christopher Alexander
    110 recommend · 368
    Cover of Mastering Regular Expressions2008–2025

    Mastering Regular Expressions

    Jeffrey E. F. Friedl
    58 recommend · 115
    Cover of Grokking Algorithms2014–2025

    Grokking Algorithms

    Aditya Y. Bhargava
    42 recommend · 75
    Cover of Quantum Computing Since Democritus2007–2026

    Quantum Computing Since Democritus

    Scott Aaronson
    73 recommend · 131
    Cover of Programming Elixir2013–2023

    Programming Elixir

    Dave Thomas
    40 recommend · 80
    Cover of Learn You a Haskell for Great Good!2009–2026

    Learn You a Haskell for Great Good!

    Miran Lipovača
    237 recommend · 456

    Blogs

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    Futility Closetfutilitycloset.com105 people

    A visual proof that a^2 – b^2 = (a + b)(a – b)

    Futility Closet
    Publication · last shared 2026
    John D. Cookjohndcook.com648 people

    Organizing complexity is the most important skill in software development

    John D. Cook
    Personal · last shared 2026
    Steve Hanovstevehanov.ca106 people

    20 lines of code that beat A/B testing every time

    Steve Hanov
    Personal · last shared 2026
    n-Category Cafégolem.ph.utexas.edu134 people

    Galois Theory

    n-Category Café
    Publication · last shared 2026
    Cosma Shalizibactra.org137 people

    "Attention", "Transformers", in Neural Network "Large Language Models"

    Cosma Shalizi
    Personal · last shared 2026
    Xena Projectxenaproject.wordpress.com74 people

    Fermat's Last Theorem – how it’s going

    Xena Project
    Personal · last shared 2026
    Daniel Spiewakcodecommit.com70 people

    What is Hindley-Milner and why is it cool? (2008)

    Daniel Spiewak
    Personal · last shared 2020
    Michael Nielsenmichaelnielsen.org208 people

    How to crawl a quarter billion webpages in 40 hours

    Michael Nielsen
    Personal · last shared 2026