supersearches: [logic]
sidesearches: physics,
philosophy
subsearches: [arithmetic],
[elementary (high school/college) algebra], [calculus],
[linear algebra],
[real analysis],
[abstract algebra],
General resources
Wikipedia,
Wolfram mathworld,
Citizendium,
NWE
AoPS wiki,
Math wiki,
nLab,
HyperMath,
PlanetMath
MIT Open Courseware
Khan Academy,
Knowino
Proof Wiki
Brilliant.org articles
Tricki
- Math problem solving techniques wiki
Math Stack Exchange
- Math Q&A website
Few-subject resources
3Blue1Brown
Math Proofs Jrensen
Eqworld
- differential, integral and functional equation exact
solutions
Human knowledge
Calculators
Desmos 3d graphing
Wolfram Alpha
Other tools
OEIS - Integer
sequences lookup
Detexify,
All LaTeX symbols list
- Find LaTeX symbols tools
Math genealogy
Floating point math
0.30000000000000004.com
Prime numbers
Prime wiki
Prime factorization visualization
GIMPS
- Lend your computer to help find (mersenne) primes
t5k.org
Pending
Euler Map Theorem (V-E+F=2) Visual Proof
Wrath of Math: is everybody teaching this math wrong?
Trachtenberg system of multiplication
Math map (quanta magazine)