As x is a pure real number, but y only with imaginary part.( }3 n4 P. { {/ p
So if want to compare these two numbers, it should compare there magnitude.tvb now,tvbnow,bttvb7 N) |; D% T7 Q% A" H
1. x -> 0+0i
, f- F2 J$ k: C* d% X' mtvb now,tvbnow,bttvb2. y -> 0+1i8 b+ _/ U% X1 Z3 p9 R, v2 A: b
7 m# u1 o% k4 F+ u2 R( h2 PMagnitude of x is |√(0^2 +0^2)| = 0; g: ^8 t( m6 `8 S: Z! a! @7 H% ?
Magnitude of y is |√(0^2+1^2)| = 1
3 |: }+ F7 E) @# _! y! j6 E6 l. B. G公仔箱論壇
% F, X. n3 m8 A! N: P' Q2 VTVBNOW 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。So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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