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Science

DetlefK

(16,670 posts)

1. Did you know, you actually need only the first 39 digits of pi?

Reply to Dr. Strange (Original post)

Wed Mar 14, 2012, 11:40 AM

Mar 2012

"46.Thirty-nine decimal places of pi suffice for computing the circumference of a circle girding the known universe with an error no greater than the radius of a hydrogen atom."

With my calculator I calculated a ratio of 37 decimals, but that's probably from digital rounding errors.

There's a german poem to memorize the first 20 digits of pi. I learned it back in school (out of curiosity) and I still know it.

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Highlight:

Happy Pi Day/Einstein's Birthday! [View all] Dr. Strange Mar 2012 OP

Did you know, you actually need only the first 39 digits of pi? DetlefK Mar 2012 #1

The floating point error inherent in solid-state microprocessors.... lastlib Mar 2012 #2

Kate Bush - Pi progressoid Mar 2012 #3

pi is still wrong pokerfan Mar 2012 #4

Viva la tau! Dr. Strange Mar 2012 #5

"It's Adam and Pi, not Adam and Tau!" Jim Lane Mar 2012 #6