As x is a pure real number, but y only with imaginary part.公仔箱論壇- K+ C' u* J6 l; h1 y( t
So if want to compare these two numbers, it should compare there magnitude.
7 `- D! K* B+ k7 N ?tvb now,tvbnow,bttvb1. x -> 0+0i
: n3 q: K8 r4 I) `% i3 ytvb now,tvbnow,bttvb2. y -> 0+1i
/ `0 a& `# J3 n: u3 z' I' f: j
+ P, b$ p8 ]$ \ B1 D2 C公仔箱論壇Magnitude of x is |√(0^2 +0^2)| = 0/ P1 F' _& v. ?8 |
Magnitude of y is |√(0^2+1^2)| = 1
& Y. f( }3 x* N. Z2 Z+ R) R& P* `, {% ^$ O i
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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