Write a script that will input a number in binary code eg 11
     Write a script that will input a number in binary code (eg., 1100-no blanks between the digits) and write its decimal value (12 in this case).  Write a function right fill(s, n) that fills the string s with blanks from the right until its total length is n characters. If s is longer than n characters, it must be truncated. 
  
  Solution
This function will be used in program to convert the binary cde to decimal code. The full function is used:
function dec = bin2dec2(bin)
 binstring = [];
 if length(bin) > 1
      for i = 1:length(bin)
           tempstring = num2str(bin(i));
           binstring = [binstring,tempstring];
      end
 else
      binstring=num2str(bin);
 end
 for i = 1:length(binstring);
      value(i)=str2double(binstring(i)) ...
      *(2^(length(binstring)-i));
 end
 dec=sum(value);

