What is the Octave NaN for? Is dot wrong delimiter?
>> bin2dec ('10.1')
ans = NaN

Nan means Not a Number You operation produced an undefined result. bin2dec(s) returns the decimal representation of the binary number in s. But you passed a decimal number. You probably wanted to use dec2bin() 


Those functions only work with integers. 


According to Octave's manual, you can open and read binary floating point data in VAX D and VAX G floating format, but 'Conversions are currently only supported for "ieeebe" and "ieeele" formats.' 

