As x is a pure real number, but y only with imaginary part.
0 u! X% x' ]. @5 Q* h/ J3 y0 J# ASo if want to compare these two numbers, it should compare there magnitude.
1 E% R/ u) c# A9 x! QTVBNOW 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。1. x -> 0+0i
( c; Q/ Z" p$ |7 P" ^- j2. y -> 0+1i
* L9 f% K. C6 G0 A1 btvb now,tvbnow,bttvb
5 U% i% f8 h8 g/ r" i5 ztvb now,tvbnow,bttvbMagnitude of x is |√(0^2 +0^2)| = 0
! u( @' R# ~5 _7 _0 ` ^tvb now,tvbnow,bttvbMagnitude of y is |√(0^2+1^2)| = 1
- m+ r( _2 p. ^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。公仔箱論壇5 t# u* \, `. W
So, the magnitude of y >x |
發表於 2013-1-6 06:17 PM
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