As x is a pure real number, but y only with imaginary part./ |0 X8 [6 g7 F2 l
So if want to compare these two numbers, it should compare there magnitude.% F/ o, [; c3 s+ z7 n, U
1. x -> 0+0i( d8 @: u/ Q* q+ P3 K# T
2. y -> 0+1i
2 O; ~6 v+ l7 Q1 a/ x9 a( d' J4 {5.39.217.76
* p1 l" W% n9 l( ]* \/ v公仔箱論壇Magnitude of x is |√(0^2 +0^2)| = 0
5 k7 w$ j6 B% iTVBNOW 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)| = 15.39.217.762 j0 u8 i S. h7 v1 Y! b, w
& i+ |; Q1 O" L5 s2 A
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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