As x is a pure real number, but y only with imaginary part.
6 d) |3 S9 t. i- tSo if want to compare these two numbers, it should compare there magnitude.TVBNOW 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。. A' |/ @. [- f8 ?
1. x -> 0+0i
2 ^! ]( S8 x. m; V9 v/ K2. y -> 0+1i
; r) q8 h# T' f: L, p. C' M6 g$ L) A公仔箱論壇公仔箱論壇. W" z, c) h: G
Magnitude of x is |√(0^2 +0^2)| = 0
7 q- d) p+ M+ z5.39.217.77:8898Magnitude of y is |√(0^2+1^2)| = 1
# T1 O, U4 _# k3 D5.39.217.77:8898$ \* f; p1 v; K
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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