As x is a pure real number, but y only with imaginary part.5.39.217.77:88982 \0 t4 q/ {" W4 {# B% V
So if want to compare these two numbers, it should compare there magnitude.公仔箱論壇6 s4 Q2 c" Q# \7 v
1. x -> 0+0itvb now,tvbnow,bttvb- x/ }. r# x, L9 \
2. y -> 0+1i
8 `" y& w+ H3 r& _tvb now,tvbnow,bttvb
8 w: S( G" C" Q f- m' y8 D公仔箱論壇Magnitude of x is |√(0^2 +0^2)| = 0
' B$ E c6 L3 m3 R! b5.39.217.77:8898Magnitude of y is |√(0^2+1^2)| = 1tvb now,tvbnow,bttvb& }9 @7 K6 I- n; T1 b4 Q& [
tvb now,tvbnow,bttvb" O; q1 h8 h9 V! O" C
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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