As x is a pure real number, but y only with imaginary part.
6 p- d9 P3 t$ p. d! HSo if want to compare these two numbers, it should compare there magnitude.
# e7 t. \4 J- J& \5 e* z; E1. x -> 0+0i5 y2 c3 D( f; O; j! K5 Y
2. y -> 0+1i
7 s5 y" \* g5 w% \+ L; Atvb now,tvbnow,bttvb
% r) B' N* X0 q% x% |Magnitude of x is |√(0^2 +0^2)| = 0TVBNOW 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。4 M+ |& F, q1 c
Magnitude of y is |√(0^2+1^2)| = 1公仔箱論壇$ ?9 A% f; a. d0 F$ n
tvb now,tvbnow,bttvb' C2 |( r* \8 C9 L
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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