As x is a pure real number, but y only with imaginary part.
8 c' D/ ^: X }6 n: G8 ISo if want to compare these two numbers, it should compare there magnitude.$ k/ c: z( U7 Q$ }4 S
1. x -> 0+0i
# n: Z' V+ i" _ A u. _" ` ~tvb now,tvbnow,bttvb2. y -> 0+1i公仔箱論壇# z% I: p! B! T& n* N
5 p9 |" z" w/ }; V+ Q, O$ [tvb now,tvbnow,bttvbMagnitude of x is |√(0^2 +0^2)| = 0
. M8 |- b- ]( Y7 K公仔箱論壇Magnitude of y is |√(0^2+1^2)| = 1- A7 ]5 R2 H: P6 B- u
tvb now,tvbnow,bttvb G$ L, p' r7 D! J) ?4 j
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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