10/03/28 20:57:17
>>773
x = (π/6) + ak + bk^2 + ck^3 + ････
a = (1-2sinα)/√3 = 0.15953410954132431240945671584922･･･
b = -{(2√2)a･cosα - a^2}/(2√3)
= -0.114085650063691319446152341767438･･･
c = (1/6)a^3 + (1/2√3)(sinα)a^2 + (1/√3)ab - √(2/3)(cosα)b
= 0.079665803862565437754325439798326･･･
α = π/(6√2),
sinα = 0.36183940836708374619065032599012･･･
cosα = 0.93224044245707276923748801959917･･･