As x is a pure real number, but y only with imaginary part.公仔箱論壇( z3 y1 I+ h, l2 P) o% p
So if want to compare these two numbers, it should compare there magnitude.6 C5 B# F3 f( j1 N% Q+ u
1. x -> 0+0i
2 c% S- ?! q8 z7 a: \2. y -> 0+1itvb now,tvbnow,bttvb6 y t3 y& v3 C/ e, ?
tvb now,tvbnow,bttvb) p# X! ]* O7 f K2 _' d
Magnitude of x is |√(0^2 +0^2)| = 0
) P7 h2 r8 b" |% {4 p' }: r `tvb now,tvbnow,bttvbMagnitude of y is |√(0^2+1^2)| = 1 j, q3 _0 U7 Q
tvb now,tvbnow,bttvb( X* D* b8 Q, z) A( {. |( N
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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