As x is a pure real number, but y only with imaginary part.
+ _ {3 Y' ]1 ~2 _So if want to compare these two numbers, it should compare there magnitude.
. q- R, w; M# b公仔箱論壇1. x -> 0+0itvb now,tvbnow,bttvb% `/ c! {: J I* p, j* v% [
2. y -> 0+1i
" I' m3 g4 Y3 g- W+ I& Q8 A3 M6 e公仔箱論壇公仔箱論壇1 L" |3 N$ |" F4 h+ z+ [8 X
Magnitude of x is |√(0^2 +0^2)| = 0
( p+ F0 g# k A8 K- OMagnitude of y is |√(0^2+1^2)| = 1
% |2 b# y* Q6 x7 J- f+ ?
8 L$ c1 E& [( E0 Q5 d. K2 gSo, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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