As x is a pure real number, but y only with imaginary part.' h. B$ N5 i7 W: ~
So if want to compare these two numbers, it should compare there magnitude.公仔箱論壇- C4 O* G; i; C1 ?* j/ v
1. x -> 0+0i" D+ h' N+ b1 L% J% m
2. y -> 0+1i
' K9 |! m; L4 T4 d7 p! w! r; JTVBNOW 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。tvb now,tvbnow,bttvb: s+ d2 F2 g# B) l5 r
Magnitude of x is |√(0^2 +0^2)| = 05 J b2 X4 {7 K4 K
Magnitude of y is |√(0^2+1^2)| = 1) S4 E5 j2 ?3 h; L
公仔箱論壇, K$ {' h' q7 V
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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