As x is a pure real number, but y only with imaginary part.
0 h) J, Z: @6 Y* f% I) h公仔箱論壇So if want to compare these two numbers, it should compare there magnitude.
! y/ ~- v. s, {3 v0 U1 g* X公仔箱論壇1. x -> 0+0itvb now,tvbnow,bttvb( ]) x- Q- d* T7 E
2. y -> 0+1i
& v3 O5 ^% b+ z2 l$ E/ Ftvb now,tvbnow,bttvbwww2.tvboxnow.com1 y7 Q7 j! ?& W) T1 x
Magnitude of x is |√(0^2 +0^2)| = 0公仔箱論壇' e# B: C4 @. L, ^" ^* H6 s
Magnitude of y is |√(0^2+1^2)| = 1
# ]- K% o* ^* ^- E, Btvb now,tvbnow,bttvb公仔箱論壇) f8 \' C& h3 l/ w
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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