Question

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Converting binary to decimal without using loop

I’m looking for the simplest and fastest solution. I tried documentation but could find anything.

I have an array of bits like [0, 1, 1, 1] and I want to convert it to simple int number 7. I get this array with bitget(x, 1:3), where x is an integer.

Answer 1

@Edwin’s answer uses binvec2dec which is part of the Data Acquisition Toolbox. This toobox is an additional toolbox (developed by Mathworks) but not part of the base MATLAB package.

Here is a solution that does not depend on this toolbox.

1. Use num2str to convert the binary array to a string

   str=num2str(bin_vec);

2. use bin2dec to get decimal value

   dec_num=bin2dec(str);