Converting decimal value to binary
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I have to convert decimal value to binary ,in hich my decimal value is in negative and positive
my values are
a=[ 0.0803
0.0726
0.0469
-0.0038
-0.0421]
please help how to convert to binary
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Harshit
2012-11-21
0 个投票
http://www.mathworks.in/help/matlab/ref/dec2bin.html. See this. It will do 2's complement for negative numbers
3 个评论
Pat
2012-11-21
Harshit
2012-11-21
ok sorry. i didn't notice. for negative integers a
if true
% a=-x;
b=dec2bin(2^n+a);
end
for fractions convert first them into positive say -16.56 = -17 + 0.42. Get the binary of negative using the scheme above and get the binary of 0.42 bu multiplying by 2 at each instant and gathering the integer part. You will do it ofcourse on the basis of precision you required. n denotes the number of integer bit for you.
Pat
2012-11-21
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Walter Roberson
2012-11-21
0 个投票
There are three competing standards for the representation of negative integers.
There are many methods for the representation of fractions. The ones used to represent floating point double precision numbers use some schemes that required work to deal with unusual cases.
We cannot tell you how to do the conversion until you tell us which representation you wish to use.
4 个评论
Pat
2012-11-21
Walter Roberson
2012-11-21
Is the representation one's complement, two's complement, or separate-sign? How many bits of exponent? How many bits of mantissa? Is the exponent separate-sign or two's complement or biased? What is the power that the exponent is to be raised to? Is the first bit of the mantissa to be explicit, or is it to be "hidden"?
For example, show us the exact bit breakdown you wish to use for -1E+42
Pat
2012-11-21
Walter Roberson
2012-11-21
Use the following standard but delete the last two bits of the mantissa:
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