As x is a pure real number, but y only with imaginary part.
0 r' Y0 B6 B$ {. J% ^" U7 {So if want to compare these two numbers, it should compare there magnitude.) ?2 ?+ ^9 W" U% r( a" K
1. x -> 0+0i6 P) m& T0 A# j# b; M& i; ]* ]4 z( V
2. y -> 0+1i
. j# d- L2 C9 j% D; O) Htvb now,tvbnow,bttvb5 Z2 e' q( o* {6 O e4 c8 C
Magnitude of x is |√(0^2 +0^2)| = 0
, f. k' F! Q2 ~- j* V9 R6 fwww1.tvboxnow.comMagnitude of y is |√(0^2+1^2)| = 1tvb now,tvbnow,bttvb8 N. t) M) c3 m+ l
2 b( @0 b" ]+ V( j6 w1 V& R! Dtvb now,tvbnow,bttvbSo, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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