% Berechnet die Koeffizienten Lambda, die zu den Stuetzstellen X gehoeren

function Lambda = lambda (X)

  Lambda = zeros(1,length(X));
  for i=1:length(X)
    Factors   = X(i) - X;
    Lambda(i) = 1 / (prod (Factors(1:i-1)) * prod (Factors(i+1:length(X))));
  end