作者jsdre (火麒麟小嫩嫩)
看板Grad-ProbAsk
標題[問題] 師大兩題工數
時間Thu Mar 19 23:13:09 2009
1. { e^(x+y)-y }dx + {xe^(x+y)+1}dy = 0
2. 2δu/δx-3δu/δy+2u=2x
initial condition is u(x,y)=x^2 for the line 2y+x=0
δ是偏微符號
感激不盡了 >"<
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