As x is a pure real number, but y only with imaginary part.公仔箱論壇. X9 u+ ]; S N* Y2 v0 K
So if want to compare these two numbers, it should compare there magnitude.
) |3 A2 k2 l+ y4 swww3.tvboxnow.com1. x -> 0+0iTVBNOW 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。5 R0 |, ~, p+ e* o. X
2. y -> 0+1i
: v F7 ~9 `8 cwww3.tvboxnow.com* g0 x, _- a2 q% k7 B
Magnitude of x is |√(0^2 +0^2)| = 0公仔箱論壇1 h, s0 {/ x a
Magnitude of y is |√(0^2+1^2)| = 1TVBNOW 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。- e1 y2 j* l7 b9 ^0 u
K; W* F! u& i% P$ _" \
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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