As x is a pure real number, but y only with imaginary part.5 q* O+ b+ e2 H4 i# _5 ^+ G4 I
So if want to compare these two numbers, it should compare there magnitude.2 l1 S- n- X) v
1. x -> 0+0i
+ v6 j: _( |6 o3 V5.39.217.762. y -> 0+1itvb now,tvbnow,bttvb* v4 N8 \3 _4 R7 x& @# m& \9 b
9 q8 \/ R; e$ M5.39.217.76Magnitude of x is |√(0^2 +0^2)| = 07 l$ T+ B7 n* ^# O! N! s
Magnitude of y is |√(0^2+1^2)| = 1tvb now,tvbnow,bttvb* V* H: V, u5 \# j; R; S
8 Y: v& V/ p3 A7 K# y2 O公仔箱論壇So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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