As x is a pure real number, but y only with imaginary part.公仔箱論壇' ]3 q# F6 e) b/ K# n. Z% \
So if want to compare these two numbers, it should compare there magnitude.
$ f( J5 @+ X# F- z1. x -> 0+0iTVBNOW 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。. K+ Z( W" j, k; P( z) E8 y
2. y -> 0+1i
& I0 w, Y& K5 G( o/ `, _$ y1 Ttvb now,tvbnow,bttvbTVBNOW 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。5 t' S! _* \) d1 ~5 `2 r- H1 e; _
Magnitude of x is |√(0^2 +0^2)| = 0tvb now,tvbnow,bttvb3 Z8 i$ F5 b8 f% v h4 H
Magnitude of y is |√(0^2+1^2)| = 1& z0 w* x; T7 ?4 _- E
tvb now,tvbnow,bttvb0 k! [- c' ^/ T' {. g( E
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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