As x is a pure real number, but y only with imaginary part.
; f Q% R) f4 y, r: R! gSo if want to compare these two numbers, it should compare there magnitude.4 D! ` n7 V; N7 Y
1. x -> 0+0i
7 R7 u4 Q9 G+ q7 h, WTVBNOW 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。2. y -> 0+1i公仔箱論壇# y- z5 c, x- ]( O" E6 T" ~$ r7 ~
; q: Z" b( ^7 g公仔箱論壇Magnitude of x is |√(0^2 +0^2)| = 0$ `7 U% @! E! D% }+ a5 ]
Magnitude of y is |√(0^2+1^2)| = 1
8 z: b1 P& B5 x" O+ V9 F; Z; u. Y1 g4 n a+ X6 U) m9 N6 t
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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