As x is a pure real number, but y only with imaginary part.
4 d1 l3 I3 G. N [# }9 xwww.tvboxnow.comSo if want to compare these two numbers, it should compare there magnitude.www.tvboxnow.com/ }% l$ t8 m: y: E s: g4 w+ o( _
1. x -> 0+0i* C6 n" @8 z6 T8 f: l! h; V
2. y -> 0+1i$ R+ [# R' K0 l. ]4 ]8 X- `+ {
& c: w4 m8 W. B4 D k公仔箱論壇Magnitude of x is |√(0^2 +0^2)| = 0
1 c% i: ^$ ~. ?' W9 l0 ?tvb now,tvbnow,bttvbMagnitude of y is |√(0^2+1^2)| = 1
) I/ T/ D: g' r3 Z& ztvb now,tvbnow,bttvb
) e; h- y0 e6 \) B, x' ySo, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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