As x is a pure real number, but y only with imaginary part.
% q6 x8 p3 X7 O2 Z公仔箱論壇So if want to compare these two numbers, it should compare there magnitude.
' \ Y8 }- N$ S0 T0 _- E" _1. x -> 0+0i4 i: U/ @- q7 x2 L+ C# d
2. y -> 0+1i
! L' r; E: c( o) g2 T# y6 ~$ L4 i2 L! `8 T2 @
Magnitude of x is |√(0^2 +0^2)| = 0
3 ^. C3 k, s8 J' v* }6 K公仔箱論壇Magnitude of y is |√(0^2+1^2)| = 1
+ N9 W- W8 _9 x& J' A0 R" ]公仔箱論壇5.39.217.77$ u5 h1 D) X# L% y. Y: ]
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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