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物理老师真实验目的：结果：

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$S(f)(t)=a_{0}+sum{n=1}{+infty}{a_{n} cos(n omega t)+b_{n} sin(n omega t)}$

delim{lbrace}{matrix{3}{1}{{3x-5y+z=0} {sqrt{2}x-7y+8z=0} {x-8y+9z=0}}}{ }

$delim{|}{{1/N} sum{n=1}{N}{gamma(u_n)} - 1/{2 pi} int{0}{2 pi}{gamma(t) dt}}{|} <= epsilon/3$

I = 1/2 mr^2 $I = 1/8 m_1{d_1}^2$ $K = {pi^2 m_1 {D_1}^2} / {2 {T_0}^2}$

$I = 1/8 m ({D_1}^2 + {D_2}^2)$

$p I = K/{4pi^2} ({T^2 - {T_0}^2} )$

test

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