As x is a pure real number, but y only with imaginary part.公仔箱論壇* E" e; e' k, z+ i" r
So if want to compare these two numbers, it should compare there magnitude.
( z) E! @: s& Z& U5 stvb now,tvbnow,bttvb1. x -> 0+0i
0 r: i! t# ?- j+ d$ |% y u( z2. y -> 0+1itvb now,tvbnow,bttvb" U6 K: m; {; j# U/ p) a
公仔箱論壇0 _: J/ ~6 @( U1 |0 V3 A+ u6 E
Magnitude of x is |√(0^2 +0^2)| = 05.39.217.76% m6 R& i7 b! Q0 a' K
Magnitude of y is |√(0^2+1^2)| = 1
6 B0 k: J; \+ v! I- M# j公仔箱論壇/ p7 K3 g5 d+ ]
So, the magnitude of y >x |
發表於 2013-1-6 06:17 PM
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