As x is a pure real number, but y only with imaginary part.
' S# Y+ ]# u6 R$ ?So if want to compare these two numbers, it should compare there magnitude.
' o; T- m. G l7 A. K" t1. x -> 0+0i
) P8 J7 H4 K4 @5 L) a2. y -> 0+1i
& \1 Q4 }, [3 y( }. ~www3.tvboxnow.com7 I' u; x% z7 p4 G( i, n3 l
Magnitude of x is |√(0^2 +0^2)| = 0
( u7 i9 {0 u5 P% ~tvb now,tvbnow,bttvbMagnitude of y is |√(0^2+1^2)| = 1
( o2 ~* X9 G. [% [1 x# |tvb now,tvbnow,bttvb4 u* L7 G6 w4 k0 V7 z* f6 [; U
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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