0405132人目の素数さん
2018/01/13(土) 01:56:27.50ID:vxAtUgvr・例1
a_1 = 0.7714225971
(a^8 -9a^6 +30a^4 -30a^2 +9 =0 の正根)
r = 0.63632317
((1+r)(1-r^3)-3rr = 0 の実根)
M = r(1-rr)^(3/2)/(1-r^3)= 0.393502193
>>404
・例3
r ={(2+√3)^(2/3)+(2-√3)^(2/3)- 1}/4 = 0.45541
(4r^3 +3rr -1 = 0 の実根)
M ={(207+48√3)^(1/3)+(207-48√3)^(1/3)- 1}/24
(M^3 +(1/8)M^2 -(1/6)M -(1/27)= 0 の実根)