3.14159265358979
What's that number?
Pi. The 16th letter of the Greek alphabet. Used to refer to the ratio between the circumference and diameter of any circle. Also the nickname of the protagonist of the novel and movie Life of Pi.
Pi is an irrational number, so the decimals don't repeat, which is why the number I've shown above is pi to 14 decimal places.
Oh, here it is...for those of you who are trying to forget it in the aftermath of the exams, here is a reminder of what the symbol of pi looks like.
Pi is an irrational number, so the decimals don't repeat, which is why the number I've shown above is pi to 14 decimal places.
Oh, here it is...for those of you who are trying to forget it in the aftermath of the exams, here is a reminder of what the symbol of pi looks like.Today, March 14, is Pi Day. (3/14, you get it?)
There are two things you can do to commemorate Pi Day:
1) Draw the pi symbol on the back of your hand or the inside of your wrist
2) Do about twenty sums calculating the area and circumference of circles of varying lengths of radii
It's your choice.
Here are two rhymes from Martin Gardner to remember the value of pi to some places. Figure out how they relate to pi.
ReplyDelete"Can I have a drink, alcoholic of course."
"See, I have a rhyme assisting my feeble brain its tasks oft-times resisting"
Can you make up your own?
Some years ago I met a boy, Uday Shankar, who knew the value of pi to 7000 places. He could read them out forwards or backwards. And if you asked him the 4563-th digit he would tell you instantly. His ability is documented in the Limca Book of Records. I had the privilege of interviewing him for a TV show.