As x is a pure real number, but y only with imaginary part.
; w9 S. [' E4 r1 q# @9 KSo if want to compare these two numbers, it should compare there magnitude.
: @$ p+ R# z4 Q* C' `5 U- v; ~1 Ttvb now,tvbnow,bttvb1. x -> 0+0itvb now,tvbnow,bttvb5 |; D2 b- i* \6 I% a3 ?* q
2. y -> 0+1i
, [0 z0 M/ Z$ N" s F9 R: j6 v" s/ e9 t! ~5 L' |
Magnitude of x is |√(0^2 +0^2)| = 0
9 A) H7 m% r; w* L9 l# Q( v+ R A公仔箱論壇Magnitude of y is |√(0^2+1^2)| = 1
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# u+ m/ c. F. Z- aSo, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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