As x is a pure real number, but y only with imaginary part.! K( L( U" g' f* l4 V
So if want to compare these two numbers, it should compare there magnitude.
7 T; M# \5 K, u* t T公仔箱論壇1. x -> 0+0i
5 h- U' L2 |- B4 p6 T2. y -> 0+1itvb now,tvbnow,bttvb& U, Y. o3 k V, K
8 g9 N" Z1 m; o' D6 P6 X公仔箱論壇Magnitude of x is |√(0^2 +0^2)| = 0tvb now,tvbnow,bttvb# L9 w: A- ^5 t! x" K: n" x
Magnitude of y is |√(0^2+1^2)| = 1公仔箱論壇+ ^4 \, {% n) P) Q' {7 S [
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So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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