It’s A Square Day

What are you doing?

It's A Square Day

We are playing square games. Today is a day for squares.

It's A Square Day

How come?

It's A Square Day

Square Root Day is celebrated on days when both the day of the month and the month are the square root of the last two digits of the year. Square Root Day occurs only nine times each century, and one of those times is today! That’s very exciting!

It's A Square Day

We’re going to have a square party!

It's A Square Day

Square plates, square glasses and square cake! For an extra square bonus, it’s carrot juice and carrot cake!

It's A Square Day

What about the square games?

It's A Square Day

Desert always comes first!

It's A Square Day

Did you know that the symbol for square root (√) is called the radix or the radical sign? It was first used in print in 1525 in Christoph Rudolff’s Coss. The full title of the algebra book was Behend und hübsch Rechnung durch die kunstreichen regeln Algebre so gemeinicklich die Coss genent werden or Nimble and beautiful calculation via the artful rules of algebra [which] are so commonly called “coss”. People have shorted the title to Coss! This was also the first book to use the then-new signs ‘+’ and ‘−’.

There is no direct evidence of this, but it is believed that Christoph Rudolff introduced the radical symbol (√) for the square root because it resembled a lowercase “r” (for “radix”). Regiomontanus, the most famous astronomer before Copernicus, had invented a symbol for square roots, written as an elaborate “r”.

It's A Square Day

That looks interesting!

It's A Square Day

It’s fractal art, achieved through the mathematical calculations of fractal objects being visually displayed, with the use of self-similar transforms that are generated and manipulated with different assigned geometric properties to produce multiple variations of the shape in continually reducing patterns. 🙂

It's A Square Day

Fractals are a unique, digital art form, using mathematical formulas to create art with an infinite diversity of form, detail, color and light. In simple terms, a fractal is a graphical representation of a mathematical equation. The formula used for a particular image determines how each pixel in the image is formed and colored.

Square root. Author: Paul DeCelle. (lambda c*fn(z))
Square root. Author: Paul DeCelle. (lambda c*fn(z))

I found a square poem!

It's A Square Day

What does it say?

It's A Square Day

I often wondered when I cursed,
Often feared where I would be –
Wondered where she’d yield her love
When I yield, so will she.
I would her will be pitied!
Cursed be love! She pitied me…

It’s a bit nonsensical! Like this former cube!

It's A Square Day

This short poem was written by Lewis Carroll, of Alice’s Adventures in Wonderland fame. Charles Lutwidge Dodgson (his real name) spent most of his life as a lecturer in mathematics at Oxford University. This is a square poem, with 6 lines and each line with 6 words. The lines can be read horizontally, in the normal way, but also vertically, down the columns, starting with column 1, and the poem will read exactly the same. Lewis Carroll’s triumph is that each line of the poem makes (some) sense, although it cannot be described as great literature!

Square Poem by Lewis Carroll
Square Poem by Lewis Carroll

New game! Let’s put the cube back together!

It's A Square Day

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