Talk:BFB 13/@comment-35554213-20190314101421/@comment-27716663-20190314141550

That the mathematical constant (π) equals to 3.141592653589793238462643383279502884197169399375105820974944592307816406286208998628034825342117067982148086513282306647093844609550582231725359408128481117450284102701938521105559644622948954930381964428810975665933446128475648233786783165271201909145648…