As x is a pure real number, but y only with imaginary part.6 r* M' t1 d2 {5 d4 \, O1 v3 k
So if want to compare these two numbers, it should compare there magnitude.tvb now,tvbnow,bttvb$ q$ s6 v9 K- S) X. d1 v2 r
1. x -> 0+0i公仔箱論壇1 v1 x; O0 J1 t7 n* z: {
2. y -> 0+1itvb now,tvbnow,bttvb5 C3 E! E0 H7 h8 z
' y) Q4 H. u/ j, H5 k+ B$ a+ E
Magnitude of x is |√(0^2 +0^2)| = 0
7 Y9 h# S+ s5 `* O5 Y+ e) }公仔箱論壇Magnitude of y is |√(0^2+1^2)| = 1
; f' W. D u6 U. Ftvb now,tvbnow,bttvbTVBNOW 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。8 c' p& z+ e2 \$ p8 ^' J$ U* V
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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