As x is a pure real number, but y only with imaginary part.5.39.217.77:8898, w8 q! | b2 ~) w- H$ @8 T
So if want to compare these two numbers, it should compare there magnitude.5.39.217.77:8898+ C2 z S9 X4 c5 u& d) \* P5 u
1. x -> 0+0i公仔箱論壇0 P8 O# a+ f; s/ e! v
2. y -> 0+1i& f9 M8 Z ?% }7 I
# c" M4 x. t& I5 A( e2 p
Magnitude of x is |√(0^2 +0^2)| = 0 p" {8 q6 r0 v% D6 J: ]4 D" u
Magnitude of y is |√(0^2+1^2)| = 1公仔箱論壇% p+ g. E+ y* t6 L! }) Q0 R
tvb now,tvbnow,bttvb9 s0 y5 H* w% O
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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