Polyhedron models : Wenninger, Magnus J
Math & Physics
The On-Line Encyclopedia of Integer Sequences® (OEIS®)
Uniform tilings in hyperbolic plane - Wikipedia
Triangle center - Wikipedia
Johannes Kepler - Harmonices Mundi
The Fifty-Nine Icosahedra
PARI/GP Development Headquarters
Byrne's Euclid
Phys.org - News and Articles on Science and Technology
Hyperbolic Geometry with Ruler and Compass
Yahtzee Probability
Calculadora de Regra de 3 Simples: calcule aqui! - 4Devs
Geogebra Flower Pattern
Portal:Matemática – Wikipédia, a enciclopédia livre
Portal:Geometria – Wikipédia, a enciclopédia livre
Johnson solid - Wikipedia
Deltaedro – Wikipédia, a enciclopédia livre
Calculadora de Conversão de Bases Numéricas - Calculadora Online
Propriedades do número 119
Online Fractal Creator
100,000 Digits of Pi
An Interactive Introduction to Fourier Transforms
Mathematical Models
Disfenoide achatado – Wikipédia, a enciclopédia livre
List of regular polytopes and compounds - Wikipedia
Circular Multiplication
Pythagorean Theorem and its many proofs
Visual Polyhedra
Paper Models of Polyhedra
Online Arbitrary Precision Calculator