推 dennis1990:圓柱座標 積2pi到pi/2 211.23.224.202 07/06 18:50
An are shown in the figure is from point A(R,0,0) to point B(0,R,0 )
where R is the radious of the incomplete circle Given the vector field
→ -y i + x j
Ｆ = -------------- , Find the path integral from point A to point B
x^2 + y^2
我有看出與積分路徑無關,可是不知道該取什麼路徑,我原本取 y=0 ; 再x=0
後來才發現經原點斷點
先說聲謝拉!
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