As x is a pure real number, but y only with imaginary part.公仔箱論壇3 p$ \2 @ y( [$ U
So if want to compare these two numbers, it should compare there magnitude.$ _- n& Y2 I( f7 J7 V8 |$ [
1. x -> 0+0i
: \6 [7 o, A! m6 ]2 n公仔箱論壇2. y -> 0+1i公仔箱論壇! u4 {: p5 }" X c, U+ W4 z7 J- U$ U
P: O: a- Z) N! b5 FTVBNOW 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 x is |√(0^2 +0^2)| = 0
% J, @) Q- d) e6 v公仔箱論壇Magnitude of y is |√(0^2+1^2)| = 1
/ q$ e" k7 i q# i+ K6 |! z5 _9 Mtvb now,tvbnow,bttvbwww2.tvboxnow.com0 \6 T0 G' w/ K) V
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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