As x is a pure real number, but y only with imaginary part.
3 Q: z& x# o# r2 B/ |4 X1 r. S" QSo if want to compare these two numbers, it should compare there magnitude.
$ p3 k* l r; u3 Ztvb now,tvbnow,bttvb1. x -> 0+0i5.39.217.76, r9 p* Q Y5 O, }
2. y -> 0+1i
) o% H, R6 C. Y" Q, o4 Y6 {- y5.39.217.76公仔箱論壇3 H; r4 [8 e' M
Magnitude of x is |√(0^2 +0^2)| = 0公仔箱論壇, k1 ~ o6 v2 V! v* ? i
Magnitude of y is |√(0^2+1^2)| = 1, J2 D5 u3 D: t& ~6 `
tvb now,tvbnow,bttvb0 p/ x% a. f n. n4 r! ~
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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