2000FUN論壇

標題: Lagrange multipliers [打印本頁]

作者: ErIcK★TsE 時間: 09-4-4 07:24 PM 標題: Lagrange multipliers

作者: Naozumi 時間: 09-4-4 08:24 PM

[ 本帖最後由 Naozumi 於 2009-4-4 10:09 PM 編輯 ]

作者: ErIcK★TsE 時間: 09-4-5 02:21 PM

How did you get f(x,y,z)=X^2 + y^2 + z^2?
Shouldn't it f(x,y,z) be sqrt(x^2 + y^2 + z^2) (the distance)?

[ 本帖最後由 ErIcK★TsE 於 2009-4-5 05:35 PM 編輯 ]

作者: Naozumi 時間: 09-4-5 06:41 PM

minimize x^2+y^2+z^2同minimize sqrt(x^2 + y^2 + z^2)係冇分別

作者: ErIcK★TsE 時間: 09-4-5 07:52 PM

Yes, you are right
I tried f(x,y,z) = sqrt(x^2 + y^2 + z^2)
The answer is the same as yours

作者: Naozumi 時間: 09-4-5 07:53 PM

但係有左sqrt,d數的處理會麻煩好多

歡迎光臨 2000FUN論壇 (https://www.2000fun.com/)