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Conversion of signed binary row matrix in to decimal value

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Ayesa
Ayesa 2011-12-22
If i have a 1 by 16 matrix where each element representing a bit and the matrix is a representation of singned binary number. p = [1 1 1 1 1 1 1 1 1 1 0 0 1 1 1 1]
I want to put a radix point n bits from the LSB and convert it in to decimal value (here, n = 2; p = -12.25 after decimal conversion).
How can i do that? Can anyone please give me any suggestion?

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回答（1 个）

Walter Roberson
Walter Roberson 2011-12-22
Start with code to do the conversion of the bits in to decimal. Once you have that code, feed p(2) to the end in to that, divide the result by 2^n, and then use the first bit, p(1) to do the sign adjustment.

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