As x is a pure real number, but y only with imaginary part.TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。! ^1 y9 u$ ]( s- z8 e
So if want to compare these two numbers, it should compare there magnitude.公仔箱論壇; D& ?! J' r0 y
1. x -> 0+0i
9 g5 k4 B, c+ a4 O: ]1 T: W+ A! o5.39.217.762. y -> 0+1i
8 T% a ?' t0 utvb now,tvbnow,bttvb
$ R! |: m6 N) N5 k7 c) ytvb now,tvbnow,bttvbMagnitude of x is |√(0^2 +0^2)| = 0tvb now,tvbnow,bttvb) A, Z/ a# Y P
Magnitude of y is |√(0^2+1^2)| = 1tvb now,tvbnow,bttvb1 @! T k: d* E% K
7 \7 { `# V. z4 Ctvb now,tvbnow,bttvbSo, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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