Cluster is an allocation unit. If you create file lets say 1 byte in size, at least one cluster should be allocated on FAT file system. On NTFS if file is small enough, it can be stored in MFT record
function varargout=size(varargin)
%size Returns the number of inequalities and equalities
%
% n = SIZE(F) Returns the number of inequalities
% [n,m] = SIZE(F) Returns th
