Mathematics

1. MR: Search Publications database
2. Number Theory authors/titles Jun 2020contact arXivsubscribe to arXiv mailings
3. SciHub: Where?

1. Project Euler
2. Codeforces
3. GeeksforGeeks | A computer science portal for geeks

1. Where can I find examples of good Mathematica programming practice?

   Your First Stop for professional Mathematica Programming
2. Wolfram Community

   Many Discussion Groups
3. Mathematica • r/Mathematica

   Mathematica on Reddit
4. Mathematica Stack Exchange
5. Wolfram Mathematica
6. PackageData[]: Packages for Mathematica
7. 16 more

1. Wolfram|Alpha
2. MathTools
3. nLab The Lab
4. DLMF: NIST Digital Library of Mathematical Functions
5. KANT
6. Magma Calculator
7. 6 more

1. Sage on Windows 10

   Running Sage on the Windows 10 Pro Subsystem for Linux (WSL)
2. Questions - ASKSAGE: Sage Q&A Forum
3. SageMath - Open-Source Mathematical Software System
4. Abstract Algebra with Sage
5. Sage Documentation v9.0
6. Number fields — Sage Constructions v6.8

1. GAP Lesson
2. GAP

1. pari.math.u-bordeaux.fr
2. Category:PARI/GP
3. PARIrefcard.pdf

1. GeoGebra | Free Math Apps - used by over 100 Million Students & Teachers Worldwide
2. Escher en het Alhambra

1. MIT Thesis LaTeX Specs
2. Tex Stack Exchange
3. LaTeX org
4. Style/class tutorials
5. MiKTeX Project Page
6. Include Mathematica code in LaTeX
7. 2 more

1. LaTeX Editors/IDEs
2. Hannah-Sten/TeXiFy-IDEA
3. OverLeaf
4. ShareLaTeX, the Online LaTeX Editor
5. TeXstudio : user manual
6. TeXstudio

1. Package graphicx
2. tcolorbox.pdf

1. Text Processing Tools
2. PDF to PNG - Convert PDF to PNG Online
3. Markdown,Sublime Text and Pandoc
4. Synoniemen.net
5. iceScrum

1. dummies - Learning Made Easy
2. Mastering Git/Github
3. Mastering PowerShell
4. Should I Block It?
5. CPUBoss
6. PassMark Software - PC Benchmark and Test Software
7. 13 more

1. Techno kak

   Hackintosh

1. Free Textbooks by Topic
2. Open Source Approved by AIM
3. Library Genesis

1. E-book management
2. Goodereader

1. User:Nilo de Roock - OeisWiki
2. Suggest Bookmarks Here

   My personal Twitter feed
3. MIT Video
4. Wikidata
5. The MMT Language and System
6. zbMath

1. Pell Equation
2. Computer Science - Riemann Hypothesis and its Applications - YouTube
3. OEIS
4. A036035 - Prime Signature
5. Prime Pages
6. mersenneforum.org
7. 20 more

1. Mini-course: "Introduction to Analytic Number Theory" by Ram Murty [2015] - YouTube

   Ram Murty lectures
2. The Fluctuations of the Prime-counting Function pi(x)
3. Visualizing the Riemann hypothesis and analytic continuation
4. Computation of Riemann ζ function
5. The Riemann hypothesis in various settings
6. MrYouMath
7. 27 more

1. Introduction to Modular Forms - Part 1 of 8

   By Keith Conrad
2. Modular Forms, A Computational Approach — Modular Forms, A Computational Approach v0.1 ...
3. http://www.math.utah.edu/vigre/minicourses/sl2/schedule.html

   SL2 Course

1. dCode - Solvers, Ciphers, Calculators, Decoders, Online Tools

1. Jim Fowler
2. Math 53: Multivariable Calculus (Fall 2009, UC Berkeley)
3. Video Lectures | Multivariable Calculus | Mathematics | MIT OpenCourseWare
4. 100 Series

   6 hour video
5. Mika Seppälä
6. Series | AP Calculus BC | Math | Khan Academy
7. 3 more

1. NUI Galway MA180-2/MA190/MA186 : Semester 2 Calculus, 2012/13

1. Real Analysis (73 lectures)

1. Pantograph Explained
2. Complex Analysis

   Complex Analysis by Prof. P. A. S. Sree
3. Complex Analysis - Spring 16

   Mathematics III - Complex Analysis - Spring 16
4. MATH 331: Complex Analysis

   James Cook's MATH 331: Complex Analysis
5. Complex analysis

   Videos by The MathCoach
6. Math 5022
7. 13 more

1. How Euler Did It, by Ed Sandifer

   MAA Column

1. What is a manifold
2. Manifolds
3. The Fundamental Group of the Circle, Part 1

   The Fundamental Group of the Circle, Part 1/6
4. General Topology

   Course based on Munkres' Topology
5. Measure Theory for Probability: A Very Brief Introduction
6. Differential Topology | Lecture 1 by John W. Milnor
7. 2 more

1. Resources
2. The Fourier Transforms and Its Applications - YouTube

   Brad Osgood
3. Fourier and Laplace Transforms | Differential Equations and Linear Algebra | Learn Diff...

1. Problems in Mathematics

1. Exploring Discrete Mathematics Using Mathematica
2. Video: 12 Fold Way Explained
3. How to think in graphs: An illustrative introduction to Graph Theory and its applications
4. Probability Theory: The Logic of Science Reading Course Introduction

1. Category theory foundations — Steve Awodey
2. Logical Methods in Computer Science
3. Theory and Applications of Categories
4. Category Theory
5. TheCatsters
6. Steven Roman - Mathematics

1. Quanta Magazine - Illuminating Science | Quanta Magazine

   Physics, Mathematics, Biology, Computer Science
2. Matt Baker's Math Blog

   Number Theory topics
3. Mr Barton Maths Blog - The blog of Craig Barton @mrbartonmaths

   The blog of Craig Barton ...
4. Intellectual Mathematics

   Too ( ... ) intellectual ( for me )?
5. Math with Bad Drawings

   Illustrated blog
6. Terence Tao

   Was Charlie Eppes modeled after Terence Tao?!
7. 10 more

1. mathforum.org
2. AOP/Alcumus
3. The Open University
4. Calculator.Net
5. Graspable Math
6. Daily Challenges
7. 2 more

1. NL: Personal computer care
2. Het schoolsysteem VS vergeleken met dat van Nederland. American school system compared ...
3. Nederlandse Vereniging van Wiskundeleraren – Vakvereniging voor wiskundeleraren in het ...
4. Platform Wiskunde
5. Cito - toetsen, examens, volgsystemen, certificering & onderzoek
6. cTWO: Commissie vernieuwing wiskundeonderwijs
7. 7 more

1. Artificial Intelligence: A Modern Approach

1. Archive of Formal Proofs
2. Mathematical Components
3. leanprover-community/mathlib

1. Formal Abstracts

   Towards a Google Earth of Mathematics...

This category is still in development

1. Bethel University

1. mathafou.free.fr
2. 3Blue1Brown

   Recreational Math Short Videos
3. LetsSolveMathProblems

   A collection of videos about famous or just "difficult" problems in the realm of Recreational Math.

1. International Mathematical Olympiad
2. pen-20070711.pdf
3. International Mathematical Olympiad
4. Online Results
5. Australian Primary Mathematics Classroom
6. The Putnam Archive

In order of rating.

1. Numberphile

   Many short stories about a math topic.
2. NPTEL PHASE 2 - Courses.

   A selection of undergraduate and graduate courses
3. Bill Kinney

   Full Undergraduate Program ( most illustrated with Mathematica )
4. James Cook

   Full Undergraduate Program
5. UConn Mathematics

   Graduate level introductory courses
6. Winston Ou

   Undergraduate Calculus, Analysis, Linear Algebra
7. 25 more

1. Digital Image Processing

1. Susskind's Cosmology Lectures
2. David Butler's Cosmology Videos

1. LPPFusion

   Did the Big Bang really happen?
2. Convert just about anything to anything else
3. Convert-me.com

   Instant units conversion
4. Particle Physics Course
5. Schreiber
6. Special Theory of Relativity Online Course Video Lectures, IIT Bombay by Prof. Shiva Pr...
7. 21 more

In Alphabetical Order

1. David Cardon's Home Page

   "Matrices related to Dirichlet Series" & works @ BYU.
2. Keith Conrad
3. User James S. Cook

   Mathematics Professor
4. Jan van de Craats
5. User Chris Culter - Mathematics Stack Exchange
6. Harold G. Diamond

   Emeritus - Number Theorist
7. 39 more