Use the "Yoshisuke Matsunaga's formula" to find the approximate value of pi.
Use the following "Yoshisuke Matsunaga's formula" to find the approximate value of pi.
π = √[9{1 + (1^2)/(3・4) + (1^2・2^2/(3・4・5・6) + (1^2・2^2・3^2)/(3・4・5・6・7・8) + ・・・ )}]
Let's observe how the approximate value of pi can be obtained as the number of terms increases.
You can see that the convergence is very fast.