As x is a pure real number, but y only with imaginary part.
$ U* V' E2 E: ]* nSo if want to compare these two numbers, it should compare there magnitude.# ^) q: u- z7 S/ ^6 T+ O( b! r+ y
1. x -> 0+0i
9 `- x+ g% [9 H8 D' uwww3.tvboxnow.com2. y -> 0+1i
7 \, k0 ?) r9 y4 iTVBNOW 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。
+ W# M) T9 l+ t% c9 u% D# vMagnitude of x is |√(0^2 +0^2)| = 07 L" `2 K1 S7 f
Magnitude of y is |√(0^2+1^2)| = 1! _2 J8 N9 m2 f; D! K
2 y3 C7 Z9 t7 N! m8 s3 A; r
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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