As x is a pure real number, but y only with imaginary part.公仔箱論壇, x! L; J3 o. ]; B4 U' O
So if want to compare these two numbers, it should compare there magnitude.
e* t' m. D, g( }) X Q1. x -> 0+0i
. a, Z) {8 P5 w2 }, [, N, F2 Jwww1.tvboxnow.com2. y -> 0+1i
: \( l5 B& D4 Q2 T# A& qwww1.tvboxnow.com
$ X: D C2 j3 @; O9 h9 o. \www1.tvboxnow.comMagnitude of x is |√(0^2 +0^2)| = 03 K9 X0 d" X$ A' w8 I; H7 ]* j
Magnitude of y is |√(0^2+1^2)| = 1
1 o* R' M. z0 m1 y2 V* ]公仔箱論壇tvb now,tvbnow,bttvb5 X( Q$ u; r2 E2 y
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
| 
