As x is a pure real number, but y only with imaginary part.6 v/ J$ o+ ?2 e5 M) I: {
So if want to compare these two numbers, it should compare there magnitude.
/ u& C" p/ Y; y% d! G7 C1. x -> 0+0i9 y" {. `* x4 p" _. N
2. y -> 0+1i
5 ^: P& M: @* ~ G8 L R8 ?" I& N! n+ t- K
Magnitude of x is |√(0^2 +0^2)| = 0* w; y- [; ?) F# ]' W7 h2 M( [
Magnitude of y is |√(0^2+1^2)| = 1
" _# p8 q, S1 q- P' ~, d, t公仔箱論壇
: I1 H- d r5 r4 o5.39.217.77:8898So, the magnitude of y >x |
發表於 2012-12-29 07:13 PM
| 
