How to convert sometimes negative decimal matrix to two's complement

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Nick DeMarchis 2019-5-20

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回答： vidhathri bhat 2019-5-28

I have a matrix that is 667648x2, full of sometimes negative decimals that range between -1 and 1. How would I convert this matrix into some output of 16 bit two's complement binary numbers? Thank you.

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Answer 1

vidhathri bhat 2019-5-28

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Hi

You can use num2bin() function to do that. Here is an example. You can check out the functions here to change the parameters as required

https://www.mathworks.com/help/fixedpoint/ref/num2bin.html

https://www.mathworks.com/help/fixedpoint/ref/quantizer.html

x = [-0.1 0.02 -0.4; 7 9 -11]
x =
   -0.1000    0.0200   -0.4000
    7.0000    9.0000  -11.0000
q = quantizer([16,8])
q =
        DataMode = fixed
       RoundMode = floor
    OverflowMode = saturate
          Format = [16  8]
y = num2bin(q,x)
y =
  6×16 char array
    '1111111111100110'
    '0000011100000000'
    '0000000000000101'
    '0000100100000000'
    '1111111110011001'
    '1111010100000000'