As x is a pure real number, but y only with imaginary part.6 ?2 H, g! o0 F+ O* L
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。0 }3 X" F+ n p6 O( [
1. x -> 0+0i
+ N9 [% O+ o3 P( @公仔箱論壇2. y -> 0+1i
6 f4 P- r. c' g1 |6 U
) u* r9 i9 I9 T3 mMagnitude of x is |√(0^2 +0^2)| = 0
3 n, O8 I) k# s5 ltvb now,tvbnow,bttvbMagnitude of y is |√(0^2+1^2)| = 1tvb now,tvbnow,bttvb q) c$ A: B$ D! |& N
- m& [1 ]! E% R4 Q4 L. F公仔箱論壇So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
| 
