Sky in the Pi

When some colored or shaded digits of the number π listed on a canvas or cardboard reads or looks like the ghostly or imaginary word “sky.”

When Paul asked Timothy whether he saw the “sky in the pi” on the huge poster, his geeky friend thought he misspoke the term “pi in the sky.”

by Numerati October 21, 2025

Pie-in-the-Sky Pi

When pure mathematicians dream that the elegant proofs of their π-related theorems would increase the chances of landing their names in the Mathematical Book of Life, or could propel them into mathematical immortality.

It’s an unspoken desire among Fields medalists—the mathematical equivalent of Nobel Prize winners in mathematics—and first-rate mathematicians to achieve pie-in-the-sky pi dreams.

by MathPlus May 24, 2021

Pi in the Sky

When the passengers on a plane up in the sky are separately seated based on the the digits of the decimal number π—there are three empty seats between the first and second passenger, one empty seat between the second and third passenger, four empty seats between the third and fourth passenger, and so on.

On a Boeing 777, how many passengers could take part in the “pi in the sky” experience?

by Fasters December 24, 2021

Pi in the Sky

When an airplane fleet leave a vapor trail that looks like the symbol π.

Teachers and students in the Greek city couldn’t wait for Pi Day, as they look forward to see the “pi in the sky” display.

by MathPlus October 17, 2021

Pi in the Sky

When the value of the mathematical pi is exactly three, which can be inferred from two verses in the Bible (1 Kings 7:23 and 2 Chronicles 4:2)—the “biblical pi” contradicts the mathematicians’ value, which is about 3.14 or 22/7.

How does one reconcile the value of pi in the sky with the irrational value of pi on earth? Could theologians or theomaticians explain the missing “0.14” bit to the mathematical brethren?

by MathPlus October 17, 2018

Pi in the Sky

When math-anxious or mathophobic folks are prepared to watch a movie on the number π, or to listen to a podcast on it, on a “flight to nowhere,” as they take pride in playing their part to keep their national airline from going under.

Environmental groups have criticized those “Pi in the Sky” vanity flights, which would release millions of tons of carbon dioxide in polluting the environment.

by MathPlus November 4, 2020

pie-in-the-sky

Exaggerated, excessively idealized, unrealistic.

You can try to sell your old computer, but US$ 3000 is a pie-in-the-sky price!

by Brandizzi February 8, 2008