For 10 points, identify this constant, which can also, which is also approximated by 355 over 113 and 22 over 7.
It can be calculated via the Bailey-Borwein-Plouffe method, and the Salamin-Brent method is a special kind of the Gauss-Legendre method which can be used to calculate this quantity. The limit of Viete's formula yields it, as do several Machin like series. The solution to the Basel problem is this squared over 6, and it is also the product of 4 and the sum of the Gregory-Leibniz series, though more notable approximations to it were made by Newton and Ramanujan. For 10 points, identify this constant, which can also, which is also approximated by 355 over 113 and 22 over 7.
It can be calculated via the Bailey-Borwein-Plouffe method, and the Salamin-Brent method is a special kind of the Gauss-Legendre method which can be used to calculate this quantity.
approximations of {pi} or {algorithms} to {find pi} or word forms {involving pi}