As x is a pure real number, but y only with imaginary part.
3 Y9 H& K9 S" [, D1 z( wtvb now,tvbnow,bttvbSo if want to compare these two numbers, it should compare there magnitude.
+ ^6 ~' @& z% z; y: `2 h5 Stvb now,tvbnow,bttvb1. x -> 0+0i% [7 P$ j% `, Z* E% m/ {/ O4 b: x7 ^
2. y -> 0+1itvb now,tvbnow,bttvb( e! d2 J* z6 U6 {8 j: _' r5 m: W
TVBNOW 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。8 k, o3 O( O* O; h
Magnitude of x is |√(0^2 +0^2)| = 0
4 ~+ H0 b' D2 o" QTVBNOW 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)| = 1tvb now,tvbnow,bttvb2 z4 P+ }: H$ h, Y0 f( W1 t
公仔箱論壇! b& q. a0 F) r' w+ w; o
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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