As x is a pure real number, but y only with imaginary part.
: L% L2 D' a" ptvb now,tvbnow,bttvbSo if want to compare these two numbers, it should compare there magnitude. H% a7 J, @8 Z% B# s6 ^& B
1. x -> 0+0itvb now,tvbnow,bttvb. v! @( ^+ K3 a4 z2 J; v6 ^
2. y -> 0+1i
; [. j. O1 O9 t8 Jtvb now,tvbnow,bttvb
/ g: C7 c6 m7 p V8 }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。Magnitude of x is |√(0^2 +0^2)| = 0
9 B Q- L- B5 R: _4 g公仔箱論壇Magnitude of y is |√(0^2+1^2)| = 1公仔箱論壇6 A7 |5 k7 ]4 n5 _! X9 a
5.39.217.769 q# S) D5 S7 h, y
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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