As x is a pure real number, but y only with imaginary part.' Z+ P* [9 X7 D9 j0 V! k
So if want to compare these two numbers, it should compare there magnitude.9 [+ J& b {% x
1. x -> 0+0i公仔箱論壇5 d) d2 B4 p9 z$ @$ A. i
2. y -> 0+1i公仔箱論壇 k: m* F4 H- Z7 K
6 n' j9 O. M* e& y5.39.217.77Magnitude of x is |√(0^2 +0^2)| = 0tvb now,tvbnow,bttvb+ V8 ^% G+ O4 s1 Y- J- R7 m. j
Magnitude of y is |√(0^2+1^2)| = 1, b" k* T" Z. T4 L) W
tvb now,tvbnow,bttvb# V6 j6 @: Q {
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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