As x is a pure real number, but y only with imaginary part.
; K1 n* J" ?* _7 LSo if want to compare these two numbers, it should compare there magnitude.
6 y: r) G+ H# F. _5.39.217.761. x -> 0+0i
' |7 }; O) _: o( N; o c公仔箱論壇2. y -> 0+1i' q+ j: I* }) R2 H6 k1 S+ Q- h
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Magnitude of x is |√(0^2 +0^2)| = 0
3 H3 s, |# E0 j* o' V5.39.217.76Magnitude of y is |√(0^2+1^2)| = 1
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+ |- h' R& l/ T5 ~( `. A公仔箱論壇So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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