推 ntust661:很懷疑第一題 03/08 22:15
→ ntust661:明明沒有封閉，卻算封閉現積分? 03/08 22:16
推 zeowo:標題錯誤 03/09 10:46
_ _ _ _
V=(-y)/(x^2+y^2)i+(x)/(x^2+y^2)j+zk
_ _
▽×V =0 in its defining domain. then computer the line
_ _
integral ∮ F‧dr
c
around the simple closed curve C defined by x=1+acost , y=bsint ,
z=e^sint for 0≦t≦2π , where a,b are two positive constants ,
and a =\= 1 .
感謝幫忙
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