Posted by "谢文进" on Monday, May 24, 2021
求解如下常微分方程： $$ \begin{aligned} \begin{cases} \frac{du}{dt}=-\frac{u}{t},1\leq t\leq 2, \\ u(1)=1 \end{cases} \end{aligned} $$
Posted by "谢文进" on Thursday, March 11, 2021
Do the next right thing!
