Mathematics
Nice source of fonts for display: http://www.fontspace.com/kingthings/kingthings-willow. The number shown is my age in days on April 2nd 2022, the day of my 73rd solar return and the day before my 73rd birthday.
☛ My Moodle site at https://voodooguru.gnomio.com/
RESOURCES
Magic Squares: https://www.magic-squares.info/ very informative site on the topic
Ron Knott's Web Pages on Mathematics: http://www.maths.surrey.ac.uk/hosted-sites/R.Knott/contactron.html
CANVA: create your own presentations on https://www.canva.com
TEACHERS PAY TEACHERS: lot of free resources available without paying because first submissions by registered users are free - https://www.teacherspayteachers.com/
DYNAMIC MATHEMATICS: https://www.dynamicmath.xyz/ lots of impressive visualisations
Germatrinator: http://www.gematrinator.com/calculator/classic/index.php Gematria calculators etc.
Free Mathematical Tables and Formulae: http://www.vaxasoftware.com/doc_eduen/mat.html
Epoch Converter: https://www.epochconverter.com/
John Conway Numberphile Playlist: https://www.numberphile.com/videos/john-conway-playlist
Manim (Mathematical Animation Engine): https://github.com/3b1b/manim
Cut the Knot: https://www.cut-the-knot.org/ full of a great many interesting articles
Online Maths Tools: https://onlinemathtools.com/ seems to be sister site to the one below
Online Number Tools: https://onlinenumbertools.com/ sister site to the one above
Of Near-Factorization Repdigit-Related Numbers: https://stdkmd.net/nrr/ Japanese site
Magic Squares: http://recmath.org/Magic%20Squares/primesqr.htm
World of Numbers: http://www.worldofnumbers.com/ lots of interesting stuff
Integral Calculator: https://www.integral-calculator.com/ newly discovered
Weird Number Bases: https://datagenetics.com/blog/december22015/index.html
Mathematical Miracle of the Qu'ran: https://submission.org/miracle.html
Numericana: http://www.numericana.com/ newly discovered site that look interesting
The Poly Pages: http://www.recmath.com/PolyPages/PolyPages/index.htm The purpose of this site is to try to provide information on the various polyforms: poly-ominoes, polyiamonds, polyhexes, polycubes etc. There is a great deal of information already on the internet and these pages will try to provide links to all (well hopefully most!) relevant sites.
INSTACALC: https://instacalc.com/ allows embedding of calculations into websites
Sohel's Advanced Mathematics: https://samtls9.blogspot.com/ good site for mental arithmetic tricks
Charles Reid Wiki: https://charlesreid1.com/wiki/Prime_Numbers information on a variety of mathematical topics
Erich Friedman's site on GitHub: https://erich-friedman.github.io/home/index.html
Prime Curios! very interesting prime number site at https://primes.utm.edu/curios/
About the Pattern of Prime Numbers: http://www.polprimos.com/ geometric determination of prime and perfect numbers
Prime Number Patterns: https://www.jasondavies.com/primos/ prime number patterns
Interactive Clock: https://www.visnos.com/demos/clock
Teaching Roman Numerals: https://all-about-roman-numerals.com/
NRICH: https://nrich.maths.org/ good mathematical education resource
Numerical Sequences Book: https://vincenzolibrandi.wordpress.com ... this is a newly discovered site that has a search facility and is similar to the OEIS.
Quick LaTeX: https://quicklatex.com/ QuickLaTeX.com is a free web service aimed to help people to include mathematical formulas&graphics into the web pages easily and without sacrificing flexibility and high quality of LaTeX system.
Recurrence Relations & Generating Functions: This page is an extension to my Fibonacci and Phi Formulae with an introduction to Recurrence Relations and to Generating Functions. http://www.maths.surrey.ac.uk/hosted-sites/R.Knott/Fibonacci/LRGF.html
Recursive Sequences: very useful site for investigating sequences further http://www.tanyakhovanova.com/RecursiveSequences/RecursiveSequences.html
Sequence Database: a database with 2402879 machine generated integer and decimal sequences. This is just newly discovered (1st June 2020) and if the sequence is in OEIS then a link is provided.
Prime Wiki: https://www.rieselprime.de/ includes information about Mersenne primes, Riesel Primes, Proth primes, Carol-Kynea primes, Williams primes and Leyland numbers.
The Encyclopedia of Mathematics wiki is an open access resource designed specifically for the mathematics community. The original articles are from the online Encyclopaedia of Mathematics, published by Kluwer Academic Publishers in 2002. With more than 8,000 entries, illuminating nearly 50,000 notions in mathematics, the Encyclopaedia of Mathematics was the most up-to-date graduate-level reference work in the field of mathematics.
Springer, in cooperation with the European Mathematical Society, has made the content of this Encyclopedia freely open to the public. It is hoped that the mathematics community will find it useful and will be motivated to update those topics that fall within their own expertise or add new topics enabling the wiki to become yet again the most comprehensive and up-to-date online mathematics reference work.
The Definitive Glossary of Higher Mathematical Jargon - In this comprehensive glossary, we'll go over some of the most foundational jargon used in higher mathematics, along with their definitions, examples, relevance and implications.
planetmath.org link to alphabetical index - PlanetMath is a virtual community which aims to help make mathematical knowledge more accessible. PlanetMath's content is created collaboratively: the main feature is the mathematics encyclopaedia with entries written and reviewed by members.
numberge information about particular numbers (similar to Numbers Aplenty)
metanumbers information about particular numbers (similar to Numbers Aplenty)
Visualising Quaternions Lessons by Grant Sanderson and Technology by Ben Eater
puzzlewocky: Please enjoy these games, puzzles and other fun things that make you think.
Three-Cornered Things Zachary Abel's Maths Blog
The Mathematical Magic of Fibonacci Numbers by Ron Knott
Polygonal and Figurate Numbers or Numbers as Shapes by Ron Knott (interactive with lots of links)
More on Polygonal and Figurate Numbers by Ron Knott
The Fractal Institute this looks interesting with links to lots of fractal tutorials.
Online Number Tools a newly discovered site that should be useful for my daily number analysis
Pickover.com Clifford A. Pickover is the author of "The Math Book" and many other titles.
Project Euler mathematical problems to be solved using programming techniques
Notes on Number Theory in the context of Cryptography looks quite interesting
Number Empire newly discovered site that deserves further investigation
CodeCogs (Online Equation Editor)
Figurate Number Formulae (from the OEIS Wiki)
GeoGebra: there is an app that can be downloaded but the online site seems just as adequate
https://www.dcode.fr/ contains some very useful tools (in French and English)
Open Culture (the best free cultural and educational media on the web)
Site for free textbooks for high school subjects including IGCSE
Tex Stack Exchange: get help regarding Tex
ShareLaTeX: online LaTeX editor, now combined with OverLeaf
PrimeGrid (all about finding new primes)
MacTutor History of Mathematics (biographies of mathematicians that I've come across)
Mathematics Portal on Wikipedia and link to Statistics Portal on Wikipedia
Supporting Australian Mathematics Project - A Guide for Teachers - Grades 11 and 12
(PDF files from this site available here)
Here are links to an interesting series of posts on understanding the Riemann Hypothesis:
