As x is a pure real number, but y only with imaginary part.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。6 w8 O: Q# Z0 ?) j
So if want to compare these two numbers, it should compare there magnitude.; R# R4 M- _& p& D- K
1. x -> 0+0i公仔箱論壇2 d( N% p$ b$ a/ Z% _6 b9 |
2. y -> 0+1i5.39.217.76# m) x3 u" r" l# s9 \& F3 g
. S/ V L5 Q7 M2 k; g* l6 _
Magnitude of x is |√(0^2 +0^2)| = 0* X6 M/ Q" j1 W: \$ |
Magnitude of y is |√(0^2+1^2)| = 1
$ g) Y* [/ A) J$ T, ?( W1 \7 I% S, f) w' W7 `
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
| 
