no of bits increases after decimal to binary conversion
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I performed
a =
5
-5
b=dec2bin(2^4+a)
b =
10101
01011
I have given 4 bits but why my output gives 5 bit value,also for 5 why may MSB is 1`,for -5 why it is 0,also if i perform
a=0;
b=dec2bin(2^4+a)
b =
10000
In this why my MSB is 1
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Azzi Abdelmalek
le 26 Nov 2012
Modifié(e) : Azzi Abdelmalek
le 26 Nov 2012
2^4+5 requires at least 5 bits
If you want to represent a with 4 bits
b=dec2bin(a,4)
also, to use dec2bin(a), a must be non negative integer
3 commentaires
Azzi Abdelmalek
le 26 Nov 2012
Yes, That what I said above, to represent signed binary number use 2's complement representation http://en.wikipedia.org/wiki/Two%27s_complement
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