國立台灣海洋大學 Partial differential equation 作業 4 教授：陳正宗終生特聘教授 學生：徐胤承 學號： M

We could exercise the method of characteristics We had a PDE like this

Then we were able to find the solution

The movie that was seen below was form the answer of last page

When T was at 45, we could plot these three figures

Finally, we plotted the figures that was including two kinds of expression We used the parametric equation to draw this illustration

We made the express in terms of x and y to find this

The end Thanks for comment