As x is a pure real number, but y only with imaginary part.3 e+ U" }( ] C
So if want to compare these two numbers, it should compare there magnitude.& `4 k9 x* y K! [) S
1. x -> 0+0i
' U+ c0 t9 }; L1 [" y1 ^' p/ \% t6 L5 ftvb now,tvbnow,bttvb2. y -> 0+1i
! h6 t: e3 y. Z: R5.39.217.77:8898
- {! X% P* c7 h8 F. R0 o5.39.217.77:8898Magnitude of x is |√(0^2 +0^2)| = 0
% u6 x" O( ]) x6 iMagnitude of y is |√(0^2+1^2)| = 1公仔箱論壇+ t$ h+ s/ L, D# k3 d3 R6 b
. C+ R' }+ i1 a i1 n% y6 Ttvb now,tvbnow,bttvbSo, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
| 
