Visualizing a 4-dimensional Sierpinski fractal.
A first introduction to p-adic numbers (David A. Madore, pdf).
Pythagorean quadruple (Wikipedia).
P-adic number (Wikipedia).
Visualizing the p-adic Integers (Albert A. Cuoco, pdf).
Visual Representations of p-adic Numbers (Mark Pedigo,pdf).
Mathematical English Usage - a Dictionary.
p-adicExpansion.
Field (Wikipedia).
Ring (Wikipedia).
Group (Wikipedia).
Abelian group (Wikipedia).
Bonse's inequality (Wikipedia).
Inequalities cheat sheet (pdf) .
IMRAD (Wikipedia).
Lagrange polynomial (Wikipedia).
Sandpile model (pdf).
Peasant Multiplication.
Ancient Egyptian multiplication (Wikipedia).
Monty Hall problem (Wikipedia).
History of Algebaric Triplets.
A Brief History of Quaternions (Amy Buchmann, pdf).
Quaternion (Wikipedia).
Inequality of arithmetic and geometric means (Wikipedia).
Heinz mean (Wikipedia).
Muirhead's inequality (Wikipedia).
Elementary symmetric sum.
Quaternion division.