Input dialog boxes accepts binary bit sequence

After entering a binary bit sequence in an input dialog box, I'm having issues when I try to convert it to a numeric value. When the str2num function is used, the leading zeros are erased. Below is my code:

prompt = {'Enter bit sequence (max 8 bits):'};
ititle = 'Input';
dims = [1 35];
temp1 = inputdlg(prompt,ititle,dims);
temp2 = str2num(temp1{1});
bit_sequence = str2num(num2str(temp2).');
disp(bit_sequence)

If the input is 0110, the output is

1
1
0

I would like to know how to keep the leading zero.

Answer 1

[Brian Hart]

Hi Lorrenzo,

MATLAB doesn't support binary representation. So when you run the above code, MATLAB thinks the value in temp2 is one-hundred-ten, not six.

To get the numerical value, try

>> temp2 = bin2dec(temp1{1});

Then to display the value as binary, try

>> disp(dec2bin(temp2,4))

where the "4" tells MATLAB how many bits to display.

[Lorrenzo Francis]

Thank you so much Brian.