As x is a pure real number, but y only with imaginary part.5.39.217.77:8898* V; v- Z$ w( n& E7 ], |1 G& o
So if want to compare these two numbers, it should compare there magnitude.
( y6 X+ m/ \( e) D; D1. x -> 0+0i$ ^( U+ o! J9 c2 ^* W* ^1 ?- R
2. y -> 0+1i
& _8 Y& s6 Y Q* G; w$ |: Z- T7 wtvb now,tvbnow,bttvb3 h5 E1 [% P" O9 a
Magnitude of x is |√(0^2 +0^2)| = 0
7 G+ j5 g/ m' J) T- ?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。Magnitude of y is |√(0^2+1^2)| = 19 m4 d) U% d, w, D
5.39.217.77:8898! [9 V% B5 C1 G) v; C. l, }- R
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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