As x is a pure real number, but y only with imaginary part.' Q! o# C/ ]% n% _/ q. M
So if want to compare these two numbers, it should compare there magnitude.
7 L% S% P; I2 `) Z, | F1 q6 K5.39.217.771. x -> 0+0i
3 @4 u6 G! O, L1 {7 U! a7 sTVBNOW 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。2. y -> 0+1i公仔箱論壇7 X8 _; \( }4 s* p
# e( ]$ b, D1 y) X4 XMagnitude of x is |√(0^2 +0^2)| = 0
) o7 Z2 u% f2 y# j) b$ ?9 Y3 F- j% KMagnitude of y is |√(0^2+1^2)| = 1
9 S8 P% `0 K' }. {1 [4 `# d公仔箱論壇' R6 ?, m: H, d: ^) A
So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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