~ Early Web Links ~

Peter Meyer's detailed reference article explains the Julian Day Number system, covering its origins, astronomical vs. chronological uses, and various related date formats like Modified Julian Day Numbers and Lilian Day Numbers. The page includes conversion algorithms and links to calendar software tools, making it a thorough technical reference for astronomers, historians, and calendricists.

Created by Steven H. Cullinane, this page explores the mathematical geometry underlying quilt block design, connecting symmetry theory to traditional patchwork patterns. It organizes curated resources across three difficulty levels, from elementary classroom guides to advanced topics like block designs in art and mathematics.

Jonathan Fraser, Professor of Mathematics at the University of St Andrews, maintains this academic homepage showcasing his research in fractal geometry, dimension theory, and geometric measure theory. Visitors will find links to his publications, research papers, talks, course notes, and resources related to his book on Assouad Dimension and Fractal Geometry.

A research project exploring the intersection of mathematics and poetry through a historical timeline tracing connections between mathematicians and poets across the centuries. The site offers a curated timeline, sources, and resources for anyone curious about how these two disciplines have influenced each other.

Math @ CowPi offers a curated collection of math tools and resources, including interactive GeoGebra sketches, a system-of-equations solver for up to five unknowns, and a full annotated text of Edwin A. Abbott's classic novel Flatland. Visitors will also find organized math links spanning algebra, geometry, trigonometry, and calculus, making it a handy reference for students and enthusiasts alike.

A page by a student or researcher at Brock University presenting the first 10,000 decimal digits of pi, calculated using Machin's formula on a Silicon Graphics MIPS R4400 workstation. It offers a concise glimpse into early 1990s academic computing power applied to a classic mathematical challenge.

Created by Robert G. Scharein, the KnotPlot Site is a visually stunning exploration of mathematical knot theory, featuring hundreds of images and animations generated by the KnotPlot software for Windows, macOS, and Linux. Visitors can browse galleries of torus knots, Celtic knots, hyperbolic knots, Brunnian links, and fractal structures, as well as download the KnotPlot program itself to visualize and manipulate knots in three and four dimensions.

The personal homepage of prolific author and inventor Clifford A. Pickover, featuring links to his 50+ books spanning fractals, chaos, black holes, the fourth dimension, and the mathematics of reality. With 800 patents, a sprawling collection of puzzles, art, and cosmic questions, this site is a portal into the mind of one of science's most imaginative popularizers.

Maintained by University of Connecticut math professor Sarah Glaz, this curated link collection gathers hundreds of resources covering math humor, mathematical poetry, math in film and theater, interactive geometry, famous problems, and career guidance. It serves as a rich undergraduate reference bridging serious mathematics with its cultural and creative dimensions.

Dr Ron Knott's comprehensive mathematics resource, hosted by Surrey University since 1996, covers Fibonacci numbers, the golden ratio, and their appearances in nature, art, geometry, architecture, and music. Packed with interactive calculators, puzzles, investigations, and dozens of linked pages exploring everything from Lucas sequences to phyllotaxis, this is one of the oldest and most thorough maths sites on the web.