As x is a pure real number, but y only with imaginary part.
4 D5 y* v% r* X1 ~* D7 E( Otvb now,tvbnow,bttvbSo if want to compare these two numbers, it should compare there magnitude.
, E! z1 b& E7 x+ F, U, w公仔箱論壇1. x -> 0+0itvb now,tvbnow,bttvb x3 `% t& m! P C
2. y -> 0+1i
2 @4 v9 e2 V9 S0 i0 W5.39.217.76
) p) N& [, ]0 v5 q/ X2 u$ d& Ttvb now,tvbnow,bttvbMagnitude of x is |√(0^2 +0^2)| = 0
0 Z$ z: @* H; i, b% cMagnitude of y is |√(0^2+1^2)| = 1公仔箱論壇4 g7 s3 b) F/ `. t- H( p. A, V
* k$ s6 U$ Y4 _1 @# \, 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。So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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