As x is a pure real number, but y only with imaginary part.! Q* G& S+ G' I
So 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。0 l/ t/ D( L% K& l; ^+ O
1. x -> 0+0i
8 f3 T- r) X/ s+ k! ?* `www1.tvboxnow.com2. y -> 0+1i
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Magnitude of x is |√(0^2 +0^2)| = 0
* s& W- k* F# Nwww1.tvboxnow.comMagnitude of y is |√(0^2+1^2)| = 1tvb now,tvbnow,bttvb' m& P% w: m% G
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So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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