As x is a pure real number, but y only with imaginary part.
1 e. V# T1 G6 Q9 r2 Z" A0 ~5 s- C) l公仔箱論壇So if want to compare these two numbers, it should compare there magnitude.6 V3 _. J. f$ A
1. x -> 0+0itvb now,tvbnow,bttvb' l* ~0 X' T( Z: E6 B0 I
2. y -> 0+1i; Y4 l2 L# T# E. e" {
" p( N/ b' k! ?4 }+ C
Magnitude of x is |√(0^2 +0^2)| = 0
" h1 c p. ^+ Z2 v! g, PTVBNOW 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。Magnitude of y is |√(0^2+1^2)| = 1
) y/ i- Z: H/ h( l' UTVBNOW 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。9 W1 @' |* v, Z* L$ z, W6 k( q. P
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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