As x is a pure real number, but y only with imaginary part.. f `& s! W/ Z/ L- I1 _
So if want to compare these two numbers, it should compare there magnitude.公仔箱論壇# _" S! P: j+ w: R
1. x -> 0+0i& d* T# Q- M, c+ t) U
2. y -> 0+1i
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0 f& [/ T! h3 T6 d' | @* Rtvb now,tvbnow,bttvbMagnitude of x is |√(0^2 +0^2)| = 07 u) M# [) _* ~; M; \: ]% T' L$ s
Magnitude of y is |√(0^2+1^2)| = 1
& M5 p" a- k, qtvb now,tvbnow,bttvbtvboxnow.com. k3 F; P+ N" r% Q( q" e" N6 r% s
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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