As x is a pure real number, but y only with imaginary part.
( D( W6 c6 {. d1 j' b7 w* iSo if want to compare these two numbers, it should compare there magnitude.2 ^( s! ]% t, |: o5 o' j6 r# P0 u
1. x -> 0+0i
1 B- F: a4 t& [% I& N1 s2. y -> 0+1i
' K& P, `) Z. X: B Y8 D+ Q
B4 s R H, G- H' w& e& O公仔箱論壇Magnitude of x is |√(0^2 +0^2)| = 0
+ P8 h6 n! f8 Q$ u: itvb now,tvbnow,bttvbMagnitude of y is |√(0^2+1^2)| = 11 D. c H+ ^) g7 A) z0 v% E
& ] B) o8 a' K# H! gTVBNOW 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。So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
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