As x is a pure real number, but y only with imaginary part.
3 p. R- J: E G# n4 j. w; USo if want to compare these two numbers, it should compare there magnitude.
4 c2 r9 d' v& xtvb now,tvbnow,bttvb1. x -> 0+0i
' L. O' Q6 i- g' P# @; \3 Q! f, ]公仔箱論壇2. y -> 0+1i& \+ `5 j% y8 F$ B! u! `0 H @
' T9 s# j1 t5 g$ {tvb now,tvbnow,bttvbMagnitude of x is |√(0^2 +0^2)| = 0公仔箱論壇% r4 Y0 R; A; X5 v1 S
Magnitude of y is |√(0^2+1^2)| = 10 M. @% L/ l' z0 }
8 Z+ m% L' Y& J8 e公仔箱論壇So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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