As x is a pure real number, but y only with imaginary part.tvb now,tvbnow,bttvb. i+ y! ]- K0 V A
So if want to compare these two numbers, it should compare there magnitude.7 W7 g- |9 k/ z' f7 B' [5 U
1. x -> 0+0i
# E2 G+ j! p7 x% k2. y -> 0+1i公仔箱論壇5 Y' Z- v9 ~( D& i. ~* X) p
4 h7 m) ^# w5 O% ZMagnitude of x is |√(0^2 +0^2)| = 0
$ _8 l7 A$ L: q& Z% ^% V QMagnitude of y is |√(0^2+1^2)| = 10 h. I0 ~# p) { [
tvb now,tvbnow,bttvb0 x9 y. A$ U M
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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