As x is a pure real number, but y only with imaginary part.tvb now,tvbnow,bttvb: m0 j6 ?, }. h" v
So if want to compare these two numbers, it should compare there magnitude.www2.tvboxnow.com4 q9 k. g! x0 r; R
1. x -> 0+0itvb now,tvbnow,bttvb$ E, F) u. v$ Z6 s$ c9 X
2. y -> 0+1i公仔箱論壇, z6 }- V1 b+ w4 i1 m0 [( O
; B9 F& N; ?" w0 D* ^9 y5 C& LMagnitude of x is |√(0^2 +0^2)| = 0
5 R# w% \$ N7 q+ J, N qMagnitude of y is |√(0^2+1^2)| = 1TVBNOW 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。, v k- I6 u, z7 z! H& ?3 ?
公仔箱論壇& N5 X* z" L* s, b
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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