% LINSPACE LINSPACE Linearly Spaced Vector
% 
% Usage
% 
% Generates a row vector with the specified number of elements, with
% entries uniformly spaced between two specified endpoints.  The syntax
% for its use is either
% 
%    y = linspace(a,b,count)
% 
% or, for a default count = 100,
% 
%    y = linspace(a,b);
% 
% Copyright (c) 2002, 2003 Samit Basu
function y = linspace(a,b,len)
  if (nargin < 3)
    len = 100;
  end
  y = a + (b-a)*((0:(len-1))/(len-1));