File mttroot/mtt/lib/control/PPP/laguerre_matrix.m artifact 5e8ca33d42 part of check-in 534206b77a


function A = laguerre_matrix (n,p)

  ## usage:  A = laguerre_matrix (n,p)
  ##
  ## A-matrix for generating nth order Laguerre functions with parameter p

  ## Copyright (C) 1999 by Peter J. Gawthrop

  if n<1			# Creatre empty matrix
    A = [];
  else				# Create A matrix
    A = diag(-p*ones(n,1));
    for i=1:n-1
      A = A + diag(-2*p*ones(n-i,1),-i);
    endfor
  endif

endfunction

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