As x is a pure real number, but y only with imaginary part.公仔箱論壇5 J+ G! W% _* {$ Y; W5 e7 o
So if want to compare these two numbers, it should compare there magnitude.
& o$ B; A5 X3 L! H0 l3 a1. x -> 0+0i5.39.217.76* c# Y' i5 N3 f- Y2 J. F7 u; h7 _
2. y -> 0+1i( b* }$ S- V- R* v
, Y8 `7 x0 L& D Ttvb now,tvbnow,bttvbMagnitude of x is |√(0^2 +0^2)| = 0
! V7 [% \. L/ X5 h7 ETVBNOW 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 y is |√(0^2+1^2)| = 13 W2 @ w0 E; G( `: X! s4 A
tvb now,tvbnow,bttvb I8 p, d6 y5 t, M
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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