As x is a pure real number, but y only with imaginary part.tvb now,tvbnow,bttvb7 c$ O$ K9 @) H2 G+ U, O3 J
So if want to compare these two numbers, it should compare there magnitude.
- K9 M, d7 G9 rtvb now,tvbnow,bttvb1. x -> 0+0i
* m; l F, K& p' y ?! l公仔箱論壇2. y -> 0+1i
* _) V0 q$ K, E9 G6 _4 ytvb now,tvbnow,bttvb% m# S0 k; a: a, o6 A8 ~
Magnitude of x is |√(0^2 +0^2)| = 0
/ T( i1 u; D# Y1 E- H$ stvb now,tvbnow,bttvbMagnitude of y is |√(0^2+1^2)| = 1
S; f" T( L9 dTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。公仔箱論壇) i, Z" T% P) N; C+ w
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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