注意:
tan alp = dy/dx
這就是我的偏微分方程!
• 嗬嗬,比我想象的複雜。 -孩子長了翅膀- ♀ (21 bytes) () 12/12/2012 postreply 11:00:49
• 在平麵上處處(!)給定 dy/dx, 你就能積分得出平行曲線簇, -9$- ♂ (31 bytes) () 12/12/2012 postreply 11:10:04
• 在2D問題中,如果你隻有包含x變量,y,y dot,y double ldot 等叫做常微分方程, -孩子長了翅膀- ♀ (68 bytes) () 12/12/2012 postreply 11:19:45
• 我研究的是最簡單PDE: partial y/partial x = f(x,y) -9$- ♂ (0 bytes) () 12/12/2012 postreply 11:28:19
• 這叫常微分方程。 -孩子長了翅膀- ♀ (214 bytes) () 12/12/2012 postreply 11:34:05
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