One map per topic. Each map puts the topic in the middle, its main ideas on the branches and every visualization on a leaf, with a one-line hint to remember it by. Turn on recall mode on a map to test yourself. Prefer a plain list? See the index.
Algorithms & Data Structures
Mathematics
- Number Theoryprimes, remainders, codes15 pages · Primes and factors · Euclid and GCD · Modular arithmetic · Bits and codes · Number patterns
- Algebra & Functionswhat each parameter does27 pages · Polynomials and graphs · Rational functions · Exponentials and logs · Waves and envelopes · Oscillators · Collisions · Motion under forces · Equations and inequalities
- Trigonometry & Geometryangles, curves and waves31 pages · Geometry proofs · Unit circle and graphs · Waves · Polar curves · Parametric curves · Conic sections · Triangle trigonometry
- Quadric Surfacesdegree-2 surfaces in 3D20 pages · Start here · Three squares · Paraboloids · Cylinders · Build and classify · Higher degree · Calculus on quadrics
- Linear Algebra & Complex Numbersvectors, matrices, transforms29 pages · Vectors and matrices · 2D transforms · Solving Ax = b · Eigen and factoring · 3D and graphics · Complex and quaternions
- Calculuschange, area and limits36 pages · Limits and derivatives · Reading derivatives · Integrals · Series · Numerical methods · Differential equations · Chaos
- Fractalssimple rules, endless detail7 pages · Escape-time sets · Random iterated maps · Recursive curves · Measuring fractals
- Physics & Circuitscircuits, fields and light19 pages · Circuit laws · Electronic parts · Fields and waves · Light and optics · Heat and gases · Relativity and quantum · Mechanics
- Probability & Statisticschance and what data tells18 pages · Counting · Conditional probability · Distributions · Random processes · Statistics from data
- Economics & Moneyhow money moves an economy14 pages · Money flows · Money and interest · Central banks · Credit and crises · Output and inflation · Open economy · Markets
- Logic, Sets & Countingtrue/false, sets, how many9 pages · Boolean logic · Counting principles · Automata · Proofs
Systems