As x is a pure real number, but y only with imaginary part.7 ^% f2 a3 [$ I+ a; O3 m! \
So if want to compare these two numbers, it should compare there magnitude.5.39.217.77:88987 ]( u$ v( q/ b4 H- w
1. x -> 0+0i
9 C2 Y8 c$ l/ z3 T, |公仔箱論壇2. y -> 0+1i
. q; g- f$ q) G* c, A$ i( o4 a5 H5.39.217.77:88985.39.217.77:88989 `5 t s, f4 @$ @3 o5 c' _9 z8 b
Magnitude of x is |√(0^2 +0^2)| = 0tvb now,tvbnow,bttvb) m3 P; Y, D3 Q3 W9 `: u( o
Magnitude of y is |√(0^2+1^2)| = 1
2 N; h$ j; U# y3 Q* G' [+ K5.39.217.77:8898
d8 w% ^/ {( [/ |0 K5.39.217.77:8898So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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