Wed, 03/23/2016 - 15:19
Social Sharing block
Body
Happy belated Pi Day! No, not pie day, Pi Day, which was last week. Pi is that Greek character you’ve heard of but aren’t quite sure what the big deal is. Pi is the ratio of a circle’s circumference to its diameter. As yawn-inducing as that may sound, it’s an important ratio because pi is the same no matter the size of the circle.
|
ADVERTISEMENT |
This magical ratio, pi, is true for the circle describing the tire of an automobile or a circle going around the entire Earth. We can use pi to calculate a diameter. If the circumference of the Earth at the equator is 40,075 km, which it is, then the diameter of the Earth is equal to the circumference divided by pi, which is approximately 12,756 km.
…
Want to continue?
Log in or create a FREE account.
By logging in you agree to receive communication from Quality Digest.
Privacy Policy.
Comments
words
Presumably you meant to say: /more than/ instead of "Because it’s than 50 years old, "
As fascinating as it may sound whn you haven't had a need for pi, one tends to forget its many uses. My nearly one year old granddaughter will someday have a need for pi, but not for a while. Her dad, my son, is mathematically inclined and will probably teach her a lot.
I don't remember the DLMF. I was a junior in High school in 1964 or a sophomore depending on the part of the year we are talking about. I still have my CRC Handbook of Mathematics and my CRC Handbook of Math and Physics I bought later while in college. I don't use either anymore, to speak of, just don't have a need to.
Add new comment