indexing complex numbers

Question

deji 2011-11-27

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https://ww2.mathworks.cn/matlabcentral/answers/22417-indexing-complex-numbers

hi,

I'm trying to index the arrays of as explained below.

a = [-2.2631+2.2631i 2.2631+2.2631i 2.2631+2.2631i 2.2631+2.2631i -2.2631+2.2631i -2.2631-2.2631i -2.2631+2.2631i 2.2631+2.2631i 2.2631-2.2631i -2.2631+2.2631i -2.2631-2.2631i -2.2631+2.2631i -2.2631-2.2631i -2.2631-2.2631i -2.2631+2.2631i -2.2631-2.2631i]
b = [00 01 11 10]
-2.2631+2.26311 will be replaced by 00
2.2631+2.2631i will be replaced by 01
2.2631-2.2631i will be replaced by 11
-2.2631-2.2631i will be replaced by 10

the problem is that i used

   x = ( 1 + real(a) ) / 2;
   y = ( 1 - imag(a) ) / 2;
   b = [ y ; x ]

but i didnt get a 2-dimensional binary bit stream like i was hoping to,instead i got a series of positive nd negative numbers. Pls wat can i do to solve it

Thanks in advance

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David Young 2011-11-28

It's not clear to me what a 2-dimensional binary bit stream is. Please could you explain what exactly the result should be like: in particular, what class (double, logical, char, uint8 or whatever), and how many rows and columns it should have.

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