Question about bin2dec

[Ron Crummett]

Hi -

I have some questions regarding the bin2dec function.  My understanding 
is that it converts a string of binary characters into a decimal 
number.  However, it looks to me that spaces within the string give rise 
to a completely different result.  As an example:

>> x = [1 1 1 1 0];
>> x_str = int2str(x);    %convert to string
fmt = %1d%3d%3d%3d%3d

>> x_str
x_str = 1  1  1  1  0
>> bin2dec(x_str)
ans = 4680

However, if I type
>> bin2dec('11110')
I get an answer of 30, which is what I would expect.  The spaces 
inbetween the characters throw the answer off from the expected result.

Is this a bug, or a "feature"?  It seems to me that we would not want 
the result from the first method.

-Ron