This is how to celebrate π day in style!!
http://www.numberworld.org/blogs/2019_3_14_pi_record/
Personal computing discussed
Krogoth wrote:Meh, back in our day we used to use slide rulers to compute for Pi and we liked it.
Mr Bill wrote:You only need 39-40 digits of Pi to calculate the circumference of the universe to an accuracy of the diameter of a hydrogen atom.
Mr Bill wrote:You only need 39-40 digits of Pi to calculate the circumference of the universe to an accuracy of the diameter of a hydrogen atom.
cphite wrote:Mr Bill wrote:You only need 39-40 digits of Pi to calculate the circumference of the universe to an accuracy of the diameter of a hydrogen atom.
Frikkin' NASA just eyeballing stuff to the nearest hydrogen atom...
Shobai wrote:cphite wrote:Mr Bill wrote:You only need 39-40 digits of Pi to calculate the circumference of the universe to an accuracy of the diameter of a hydrogen atom.
Frikkin' NASA just eyeballing stuff to the nearest hydrogen atom...
And people wonder why their funding gets cut at every drop of the hat...
cphite wrote:Exactly. They already know the 41st digit so why not use it?
Slackers.
cphite wrote:Not a computational wizard, but maybe because N bits to accurately represent n decimal digits goes as.... N = n/(Log10(2))Shobai wrote:cphite wrote:
Frikkin' NASA just eyeballing stuff to the nearest hydrogen atom...
And people wonder why their funding gets cut at every drop of the hat...
Exactly. They already know the 41st digit so why not use it?
Slackers.
just brew it! wrote:I was fooled by that at first reading also. You can calculate a circle or sphere that roughly encompasses the universe using 3 or even 3.14 as the estimate of Pi but the length of the circumference uncertainty would probably be light years. The extra digits are to refine the accuracy of the circumference (the length) to less than the diameter of a hydrogen atom.Mr Bill wrote:You only need 39-40 digits of Pi to calculate the circumference of the universe to an accuracy of the diameter of a hydrogen atom.
Only if your measurement of the radius of the universe is of comparable accuracy!