As x is a pure real number, but y only with imaginary part.公仔箱論壇( ?0 j( J$ S5 z
So if want to compare these two numbers, it should compare there magnitude.
+ V3 B9 \0 n" C9 z) v5.39.217.77:88981. x -> 0+0i* I3 A' W8 {1 M2 K. z; D
2. y -> 0+1i8 x, G3 o$ z4 X7 l& }7 H0 I( [: ]) @
9 _2 q7 C( h3 t0 v5 V" gTVBNOW 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 x is |√(0^2 +0^2)| = 0公仔箱論壇( Q6 q5 O B# e: f% Y
Magnitude of y is |√(0^2+1^2)| = 1TVBNOW 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。; |9 n: v/ i! i; e
公仔箱論壇4 ?- _5 f9 v* E5 K; R' L* x3 E! O
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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