Utilisez la "formule de Yoshisuke Matsunaga" pour trouver la valeur approximative de pi.
Use the following "Yoshisuke Matsunaga's formula" to find the approximate value of pi.
π= 3{1 + (1^2)/(4・6) + (1^2 ・ 3^2)/(4・6・8・10) + (1^2 ・ 3^2 ・ 5^2)/(4・6・8・10・12・14) + ・・・ }
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.