As x is a pure real number, but y only with imaginary part.tvb now,tvbnow,bttvb6 B" a& N4 F+ i" N
So if want to compare these two numbers, it should compare there magnitude.$ K6 l/ E7 h6 v: n" e7 S9 X
1. x -> 0+0itvb now,tvbnow,bttvb- S/ G- d7 Z/ k' \& B, ^
2. y -> 0+1i
( G7 `% @3 v+ p8 pwww2.tvboxnow.com
4 j. B5 ?! |/ v: M) c2 K/ uMagnitude of x is |√(0^2 +0^2)| = 0
, t9 u( Q* e6 W" g2 I公仔箱論壇Magnitude of y is |√(0^2+1^2)| = 1
3 B J. ?4 @* }% X# ?0 d+ Pwww2.tvboxnow.com
h* ^* ~/ `, ]So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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