As x is a pure real number, but y only with imaginary part.
# r" ^, V, x4 B& o' s4 I/ }So if want to compare these two numbers, it should compare there magnitude.
+ n% }6 z% k3 J$ T0 q3 b$ ^1. x -> 0+0i3 w. V" m1 s" u% Y: r1 T' S3 U/ D
2. y -> 0+1i
" m: L+ K# c% O0 g! J
, M3 B7 q: T! g7 wtvb now,tvbnow,bttvbMagnitude of x is |√(0^2 +0^2)| = 00 d1 u/ y) t% S6 _
Magnitude of y is |√(0^2+1^2)| = 1公仔箱論壇9 c6 i7 w9 H2 e% H' F
$ k/ h% Y+ c, f$ E5 O% d+ q5.39.217.77So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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