As x is a pure real number, but y only with imaginary part.& q$ b7 i1 |9 B
So if want to compare these two numbers, it should compare there magnitude.
3 a! k* ^" a, V" dtvb now,tvbnow,bttvb1. x -> 0+0itvb now,tvbnow,bttvb, w2 Z% S5 [4 F
2. y -> 0+1i
8 |/ Z; D# Q- T0 | y! Z5.39.217.76
1 j. H$ J9 B6 n2 o/ a1 ?; {. N. X公仔箱論壇Magnitude of x is |√(0^2 +0^2)| = 0公仔箱論壇$ z5 G$ y' R2 [+ w, |! N
Magnitude of y is |√(0^2+1^2)| = 15.39.217.76* R9 c# I! P& x# K( k4 K3 Z! c0 l A
; d0 h' a' Z0 Q/ v6 _0 T( CSo, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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