As x is a pure real number, but y only with imaginary part.
5 d! W( z' O. V4 k* p6 eSo if want to compare these two numbers, it should compare there magnitude.5.39.217.76/ H: u$ T0 J4 g9 W/ T3 H
1. x -> 0+0i5.39.217.76' f, s3 |' Y) J& w" k( c# T5 U
2. y -> 0+1i
( t/ j5 ~2 q. @' Q公仔箱論壇
: M3 @9 ]$ }! ?, D6 z& `Magnitude of x is |√(0^2 +0^2)| = 0tvb now,tvbnow,bttvb# `8 V8 t/ s# l" R, p4 W9 x9 }
Magnitude of y is |√(0^2+1^2)| = 13 Q ]" j6 Q0 F# n8 O
" y5 K% @/ m$ w3 `1 U
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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