As x is a pure real number, but y only with imaginary part.
3 W6 P- G( Y! ]4 v+ j. s5.39.217.77So if want to compare these two numbers, it should compare there magnitude.
# i0 L+ [! V7 `1. x -> 0+0itvb now,tvbnow,bttvb% j4 f- y1 c# Y9 m! `3 ^2 Z
2. y -> 0+1i
3 \+ Y, N2 o0 I7 l. a$ ?4 ~tvb now,tvbnow,bttvb: p- `0 r, o4 \4 O' z
Magnitude of x is |√(0^2 +0^2)| = 0TVBNOW 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 ^% ~7 ?0 n$ ?7 n- \/ \; T) O
Magnitude of y is |√(0^2+1^2)| = 1
, r: t$ @$ D- x9 S O8 k5.39.217.779 _; ^0 b' C7 H- {8 R
So, the magnitude of y >x |
發表於 2013-1-6 06:17 PM
| 
