As x is a pure real number, but y only with imaginary part.5.39.217.77) B/ i0 g7 f9 s( G
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。+ K( F6 A$ ]/ R' y- D ^6 h# K' H
1. x -> 0+0i
2 Y' p# x, s2 Z! O% ~- k% xtvb now,tvbnow,bttvb2. y -> 0+1i
1 J/ ~$ i/ a) N$ M6 i- Y1 ntvb now,tvbnow,bttvb5 A! \7 w* u8 h ?2 r- N
Magnitude of x is |√(0^2 +0^2)| = 05 h0 T; ?) m( w) a; S# o
Magnitude of y is |√(0^2+1^2)| = 1
: B" V/ a# Z+ Q) u; L9 v5 b公仔箱論壇
/ h) _ b5 X9 H3 \: d' K0 u) R公仔箱論壇So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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