As x is a pure real number, but y only with imaginary part.
; V! a' O2 {0 F3 y3 g公仔箱論壇So if want to compare these two numbers, it should compare there magnitude.
+ B0 e9 N. k* |& G( S5 k) b' b2 c$ ~1. x -> 0+0i
5 t5 F# L, E5 `tvb now,tvbnow,bttvb2. y -> 0+1i
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# K9 s/ ~5 Y7 ~* R3 }& Y6 D5 B' ?tvb now,tvbnow,bttvbMagnitude of x is |√(0^2 +0^2)| = 0tvb now,tvbnow,bttvb4 X0 ?0 Y! h3 u( n6 u
Magnitude of y is |√(0^2+1^2)| = 1
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+ S) g; R/ \. n1 N# L g. z$ f! Q) |tvb now,tvbnow,bttvbSo, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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