The Magic Circle Puzzle
I was browsing a copy of the The Mathematical Palette
Magic circles are quite similar to magic squares. In the magic circle above, we have to place the numbers 1 through 9 in the interior of the red circles. If we add the numbers on any circle (blue or yellow) and the number at the center, the sum should be equal to the sum of each “diagonal” of the circle.
For a little trivia, magic circles are said to have been invented by Japanese mathematician Kittoku Isomura (c. 1660).
), a mathematical constant which is approximately 
or exactly 
. I want to write about it, but I am quite tired now, so maybe, I’ll write about it later. For now, join me and let us listen to the beautiful music of