As x is a pure real number, but y only with imaginary part.公仔箱論壇4 e/ X$ J: J6 c9 G, W
So if want to compare these two numbers, it should compare there magnitude.
: h9 ]! g/ l( [9 Wwww1.tvboxnow.com1. x -> 0+0i
! l; r/ J* I. r6 J$ d7 O) gwww1.tvboxnow.com2. y -> 0+1iwww1.tvboxnow.com3 ]" {5 g/ ^. O
# w. \1 M9 I% b+ [- G. i" J; j公仔箱論壇Magnitude of x is |√(0^2 +0^2)| = 0
% m4 ~4 y$ N. ]% j+ hMagnitude of y is |√(0^2+1^2)| = 1
j/ G7 m: P+ b) x! LTVBNOW 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。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。3 n+ `. w6 u2 @& P1 m* A- b
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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