不是很想发说说和朋友圈;现在在这里,偶尔写点东西、发表下感想,有看的会偶尔来逛逛(假装会有人),不看的根本不知道这的存在,不也挺好吗?这第一篇日志,就用来做各种各样的测试吧(

行内公式:$e^{i\pi}=-1$

多行公式:

$$ \begin{gather*} \frac{\mathrm{d} }{\mathrm{d} t}\frac{\partial T}{\partial \dot{\theta_1}}-\frac{\partial T}{\partial \theta_1}=-\rho\frac{a_1-b_1}{2}(a_1+b_1)g\cos\theta_1+b_1(a_2+b_2)g\cos\theta_1+\vec{F_B}\cdot\frac{\partial \vec{r_B}}{\partial \theta_1}+\vec{F_{R1}}\cdot\frac{\partial \vec{r_{R1}}}{\partial \theta_1}+\vec{F_{R2}}\cdot\frac{\partial \vec{r_{R2}}}{\partial \theta_1} \\ \frac{\mathrm{d} }{\mathrm{d} t}\frac{\partial T}{\partial \dot{\theta_2}}-\frac{\partial T}{\partial \theta_2}=\rho\frac{a_2-b_2}{2}(a_1+b_1)g\cos\theta_2+\vec{F_B}\cdot\frac{\partial \vec{r_B}}{\partial \theta_2}+\vec{F_{R1}}\cdot\frac{\partial \vec{r_{R1}}}{\partial \theta_2}+\vec{F_{R2}}\cdot\frac{\partial \vec{r_{R2}}}{\partial \theta_2} \end{gather*} $$

C'est la vie, mon ami.

Last modification:December 27th, 2020 at 06:11 pm