~ Early Web Links ~

The OEIS is a massive searchable database of over 393,000 integer sequences, maintained by the OEIS Foundation and originally created by mathematician Neil Sloane. Researchers, students, and math enthusiasts can look up sequences by entering numbers to identify patterns, explore combinatorics, and discover connections across mathematical disciplines.

GoGeometry, created by Antonio Gutierrez, offers over 1600 illustrated geometry problems alongside interactive lessons and tutorials suited for both students and teachers. The site blends mathematical rigor with cultural touches, weaving in references to Incan heritage, Machu Picchu, and the golden ratio to make geometry visually engaging and globally inspired.

Matthew R. Watkins is a mathematician and honorary researcher at Exeter University whose site centers on his celebrated 'Secrets of Creation' trilogy, making analytic number theory and prime numbers accessible to general audiences. The site also features a number theory and physics archive, prime number resources for beginners, and links to his eclectic range of interests including parapsychology, the I Ching, and psychogeography.

The nLab is a collaborative wiki covering advanced mathematics, physics, and philosophy with a strong emphasis on category theory, homotopy theory, topos theory, and their connections to theoretical physics. It serves as an encyclopedic reference for researchers and students working at the intersection of higher mathematics and mathematical physics, offering thousands of deeply interlinked articles.

A curated collection of mathematics education links compiled at Andrews University, organized into sections for teachers, parents, and students across K-12 grade levels. The directory covers lesson plans, interactive activities, problem-solving resources, and NCTM-aligned curriculum materials from across the early web.

Alex Rutar is a mathematics postdoctoral researcher specializing in fractal geometry, dynamical systems, and dimension theory, with affiliations at the University of Jyväskylä and a PhD from the University of St Andrews. His site serves as an academic hub linking to his publications, expository writing, CV, and open-source developer tools built around LaTeX and terminal utilities.

Pinference is an R package by PierGianLuca Porta Mana that implements probability inference for propositional logic, calculating lower and upper probability bounds for logical expressions using Hailperin's procedure. The documentation site covers the theoretical foundations connecting probability calculus to sequent calculus, with worked examples and an API reference for the inferP() function.

Kenneth Falconer is a Regius Professor of Mathematics at the University of St Andrews whose personal academic page covers his pioneering work in fractal geometry, geometric measure theory, and multifractal analysis. Visitors will find links to his books and preprints, fractal movie resources, maths poems, and even a note about his impressive record completing 36 LDWA hundred-mile walks.

The Geometry Center was a University of Minnesota research and education hub dedicated to mathematics, geometry, and visualization tools, now archived after its closure. Visitors can explore interactive Java applications, 3D geometry software like Geomview and JGV, multimedia math documents, downloadable software, and video productions covering topics from solar system models to symmetry exploration.

The Rice Virtual Lab in Statistics (RVLS), created by David Lane at Rice University, offers a comprehensive suite of free web-based tools for learning and teaching statistics, including an interactive online textbook, Java simulations, real-world case studies, and an analysis lab. Supported by the National Science Foundation and recognized by multiple educational organizations, it covers topics from basic descriptive statistics to ANOVA and regression.