The answer you have marked as accepted is not a method for deriving $\pi$ since the formula depend on the value of $\pi$. I urge you to unmark it.

Mar 15, 2015 · I have calculated PI by hand to 100 digits which took 108 pages, increasing this value to 709 digits it would take 5429 pages, the cost of this much paper at that time must …

Wolfram Mathworld has listed methods and formulas to calculate $\pi$, but if you want 5 user friendly ways, here they are. Note: The precision to which pi can be calculated and the time …

I believe this one is different in that it gives a way to rapidly calculate the digits of $\pi$ and proves from scratch that that number in fact is $\pi$. It's obvious that $\pi = 6 \times \sin^ {-1} (\frac {1} …

Apr 21, 2020 · Why do mathematicians still try to calculate digits $\pi$? In 2019 Haruka Iwao calculated the world's most accurate value of $\pi$; which included $31.4$ trillion digits, far …

The full history is quite complicated. Before sine tables, there were tables of chords. This Wikipedia article gives details. Tables of sines came later in India, then in the Islamic world, …

Jul 21, 2016 · Then we asked: what is the radian measure of a straight angle (that formed by two rays of a line)? Why it is that irrational number we have decided to call $\pi$, to honour …

I am new to calculus and not have much knowledge of how it works, I thought about finding the value of $\pi$ using the idea of dividing a circle into multiple parts and finding its area and thus

Well, I don't know how to calculate the integral of $\sqrt {1-x^2}$, but is calculating the surface possible this way using integrals, instead of using pi itself? So as a workaround, so to say.

Dec 18, 2013 · Are there any simple methods for calculating the digits of $\pi$? Computers are able to calculate billions of digits, so there must be an algorithm for computing them.