DECIMAL To Binary Representation

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Dereje 2018-1-28

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https://ww2.mathworks.cn/matlabcentral/answers/379365-decimal-to-binary-representation

评论： John D'Errico 2018-1-28

Need help for a code that changes numbers into binary normal representation and storage in a single precision. Not MATLAB built-in converter. Thanks

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Dereje 2018-1-28

在 MATLAB Online 中打开

Of course if it is -ve integer, then the code considers it as a +ve integer but for me I know that my input is -ve and I considers it as -ve. For example if my input is

Then the out put is

'11000'

In the same way for -24 is also

'11000'

Since the input is -ve value it is clear that you must add -ve to get the correct result. I haven't got a result for fractions.

John D'Errico 2018-1-28

I suppose I need to post num2bin sometime. Too many round-tuits.

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回答（1 个）

Stephen23 2018-1-28

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https://ww2.mathworks.cn/matlabcentral/answers/379365-decimal-to-binary-representation#answer_302159

编辑：Stephen23 2018-1-28

在 MATLAB Online 中打开

Where N is an integer:

>> N = -24;
>> V = pow2(1+fix(log2(abs(N))):-1:0);
>> Z = fix(mod(abs(N),V(1:end-1))./V(2:end)) % numeric vector
Z =
   1   1   0   0   0
>> char(Z+'0') % char vector
ans = 11000