[理工] [工數]-線積分
※ 引述《boy210637 (小毓)》之銘言:
: ※ 引述《abcxyz123 (阿里八八與四十大盜)》之銘言:
: : Let C be a path on the paraboloid x^2+y^2-z=0 from the initial point
: : (1,0,1) to the terminal point (0,1,1);otherwise,C is arbitary[89台大土木]
: : (a)What is the value of the line integral
: : -ydx + xdy +zdz
: : ∫ _________________
: : C along the path C ? Is it independent of path ?
: : x^2+y^2
: : (b) Why?(Prove your answer in (a)
拜託各位板大讓我釐清觀念吧!
dR dQ dP dR dQ dP
我記得 Curl F = (── - ──)i + (── - ──)j + (── - ──)k
dy dz dz dx dx dy
很明顯 i j k 分量不等於零,怎麼會是保守場呢?!
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◆ From: 140.118.234.83
※ 編輯: ntust661 來自: 140.118.234.83 (12/14 15:41)
推
12/14 15:45, , 1F
12/14 15:45, 1F
-y
P = ──────
x^2 + y^2
x
Q = ──────
x^2 + y^2
z
R = ──────
x^2 + y^2
※ 編輯: ntust661 來自: 140.118.234.83 (12/14 15:51)
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