NumberDB$^\beta$
Advanced search
Tags
Tables
Help
No match in database
Pi
edit
·
history
·
discussion
·
long url
·
transcendental
irrational
trigonometry
Number
$\pi$
3.141592653589793238462643383279502884197169399375105820974944592307816406286208998628034825342117067982148086513282306647093844609550582231725359408128481117450284102701938521105559644622948954930381964428810975665933446128475648233786783165271201909145648566923460348610454326648213393607260249141274
Definition
$\pi$ is the area of the unit circle.
Formulas
(1)
$2\pi$ equals the perimeter of the unit circle.
Programs
(P1)
Sage
numbers = [RBF(pi)]
Links
[1]
Wikipedia: Pi
Data properties
Entries are of type: real number
How well the digits are known
: proven
How they were obtained
: Checked here against pi computed in ball arithmetic at 4000 bits, which covers every stored digit rather than the first hundred: the stored value is within one unit in the last place of the 301 held.
