As x is a pure real number, but y only with imaginary part.' h8 Q, |: B* Q0 s h7 J
So if want to compare these two numbers, it should compare there magnitude.
M7 v# n9 J* |3 ]( g; k: O5 d6 nTVBNOW 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。1. x -> 0+0i9 _- r/ ` s% M+ Q" _* N; g0 ?
2. y -> 0+1i
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9 \( d8 r& y) j, Y3 a% X8 rtvb now,tvbnow,bttvbMagnitude of x is |√(0^2 +0^2)| = 0
/ z0 [: g; n; Ptvb now,tvbnow,bttvbMagnitude of y is |√(0^2+1^2)| = 1
- s9 U/ j( v9 W0 N, }6 r O3 g3 Twww2.tvboxnow.com
4 w; C0 W N; FTVBNOW 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。So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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