function ret = unknown_p(x),
% This is the unknown function (a normalized distribution) from where you
% should draw samples from.  This excercise is more fun if you don't scroll
% down and peek what the function is...
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
ret = 0.4*gaussian(x,-1.3,0.6)+0.6*gaussian(x,+0.8,0.8);

