Days and Dates of the Year 2025 Represented by Magic Squares of Orders 3 to 7
Authors/Creators
- 1. Formerly, Professor of Mathematics, Federal University of Santa Catarina, Florianópolis, SC, Brazil
Description
This work brings dates and days of the year, 2025 in terms of magic squares of orders 3 to 7. For the magic squares of orders 4 and 5, the representations are given in two different ways. One of the magic square of order 4 is pandiagonal, while second one is normal. Moreover, in case of odd numbers magic sum, the padiagonal magic square is with decimal numbers entries. In case of magic squares of order 5, both the magic squares are pandiagonal. For the magic squares of order 3, some of the entries are fractions, except when the magic sum is multiple of 3. In this case the entries are integer value. In case of orders 6 and 7, there are two possibilities. One is as a cornered magic square and the second as bordered magic square. In case of bordered magic squares of order 6 and 7, some magic squares are semi-magic. These are magic squares only when magic sums are multiples of 3 (order 6) and multiples of 7 (order 7).
For all the case, the entries of the magic squares are non sequential. This work is only for nine months, i.e., from April to December, 2025. Extensions for the magic squares of orders 8, 9 etc. shall be given later on. This work is also available at author's web-site.
Files
DD-3to7b-2025.pdf
Files
(75.2 MB)
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