As x is a pure real number, but y only with imaginary part.3 x( |0 C. L$ R3 w: s
So if want to compare these two numbers, it should compare there magnitude.& N9 B' Q% j+ p; N! A- p
1. x -> 0+0iwww3.tvboxnow.com+ W8 X* H: `: a6 U+ T
2. y -> 0+1i
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" h( Q5 ?/ O! d6 aMagnitude of x is |√(0^2 +0^2)| = 0
4 ]' z' I" c0 IMagnitude of y is |√(0^2+1^2)| = 1www3.tvboxnow.com% F" J _1 q, W2 _2 V4 _
3 }5 N/ \! x% u1 f2 ?www3.tvboxnow.comSo, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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