14 Mar
2018
14 Mar
'18
12:33 a.m.
In memory of Pi... a(n+1)=2^(n+3/2)*sqrt(1/r-((1-2^(-2*n-1)*(a(n))^2*r)^(1/r)+1)^(r/2)/(r*2^(r/2))); a1=2^(3/2)/sqrt(r) ; r in R ; n----infinity ; a(n) ---- Pi.
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françois mendzina essomba2