Please submit sites that has informations pertinent to math competitions, such as contest rules and problem archives.The sites in this category are related to competitions and mathematical Olympiads, but must also contain content of interest to those not involved in the competition.
Please only place sites here which contain information about the Tower of Hanoi problem. If you have an online version of the Tower of Hanoi please place it in the Online subcategory.This category is for solutions, hints and online versions of famous math problems.
Please submit site that contains problem of the week or month. Must be current and updated regularly.This category contains educational web sites containing mathematical problems, games, puzzles, or quizzes. Sites whose emphasis is on mathematical education are welcome to submit in this category.
Please submit sites related to the history, definition, description, construction, and examples of Magic Squares and other objects, such as cubes, stars, etc.
Sites related to the mathematical treatment of the subject are not numerous and will be much appreciated.
Only sites directly related to magic squares or other magic objects will be accepted, otherwise it will probably better fit in a different category, such as /Science/Math/Recreations.
This category accepts submission of sites in English. Non-English only sites should be submitted to the corresponding language(s) of the World category.
A Magic Square of order n is an arrangement of the numbers from 1 to n^2 (n-squared) in an n by n matrix. The sum of any row, any column, or any main diagonal must be the same. The smallest non-trivial case is of order 3.
The same idea can be extended to other shapes such as stars, cubes, circles, and so on. These are called Magic objects.
Please just submit links that contain information about numbers, e.g. about pi, e, fibonacci numbers, mathematical constants, phi - The Golden Ratio, and others.Some say that numbers aren't as important as actual functions, but we say they are! :-) For anyone who has wondered why 13 is unlucky, why you can't eat pi, or why 1 is the multiplicative identity, this is the category you've been searching for since grade school. Whatever intellectual curiosity has been nagging at you since you first wrote the number 5, you will be likely to find an answer to your question here. And if not, submit your own! Also: Definitions of important constants, formulas to compute them and formulas that use them.