As x is a pure real number, but y only with imaginary part.公仔箱論壇$ L( K3 l; M; _) Y; z" @8 H7 X/ M
So if want to compare these two numbers, it should compare there magnitude.
- V! h# u* l& @9 D1. x -> 0+0i
3 w' W: a# Q$ t7 N! ^& G公仔箱論壇2. y -> 0+1itvb now,tvbnow,bttvb/ `, S5 H2 M& O/ T2 ?- R$ P" N7 D
公仔箱論壇% F k4 b. S1 x1 q
Magnitude of x is |√(0^2 +0^2)| = 03 e& D5 x. `+ M" \6 G( t
Magnitude of y is |√(0^2+1^2)| = 1
/ }2 `# A/ S0 u, [' Z. r* x公仔箱論壇/ Z6 {/ v2 B. k9 W5 m$ |6 C" j
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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