As x is a pure real number, but y only with imaginary part.公仔箱論壇$ O- x' r n0 E3 u5 e% I
So if want to compare these two numbers, it should compare there magnitude.
& j" x& U8 ?+ \公仔箱論壇1. x -> 0+0i4 u' m$ A: B8 P5 @2 c4 T* \
2. y -> 0+1itvb now,tvbnow,bttvb4 u) M6 E3 w1 g2 f) M
( {1 [- L1 K% ?1 }. U" r
Magnitude of x is |√(0^2 +0^2)| = 0tvb now,tvbnow,bttvb1 ^3 X9 O- u/ `
Magnitude of y is |√(0^2+1^2)| = 1
% z& J, a' d8 O" _$ B8 z8 Xwww3.tvboxnow.com8 b7 E# q2 Y9 e t
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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