--- a/scripts/polynomial/polyval.m
+++ b/scripts/polynomial/polyval.m
@@ -1,42 +1,43 @@
-# Copyright (C) 1996 John W. Eaton
-# 
-# This file is part of Octave.
-# 
-# Octave is free software; you can redistribute it and/or modify it
-# under the terms of the GNU General Public License as published by the
-# Free Software Foundation; either version 2, or (at your option) any
-# later version.
-# 
-# Octave is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-# for more details.
-# 
-# You should have received a copy of the GNU General Public License
-# along with Octave; see the file COPYING.  If not, write to the Free
-# Software Foundation, 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+### Copyright (C) 1996 John W. Eaton
+###
+### This file is part of Octave.
+###
+### Octave is free software; you can redistribute it and/or modify it
+### under the terms of the GNU General Public License as published by
+### the Free Software Foundation; either version 2, or (at your option)
+### any later version.
+###
+### Octave is distributed in the hope that it will be useful, but
+### WITHOUT ANY WARRANTY; without even the implied warranty of
+### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+### General Public License for more details.
+###
+### You should have received a copy of the GNU General Public License
+### along with Octave; see the file COPYING.  If not, write to the Free
+### Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+### 02111-1307, USA.
 
 function y = polyval (c, x)
 
-# usage: polyval (c, x)
-#
-# Evaluate a polynomial.
-# 
-# In octave, a polynomial is represented by it's coefficients (arranged
-# in descending order). For example a vector c of length n+1 corresponds
-# to the following nth order polynomial
-# 
-#   p(x) = c(1) x^n + ... + c(n) x + c(n+1).
-# 
-# polyval(c,x) will evaluate the polynomial at the specified value of x.
-# 
-# If x is a vector or matrix, the polynomial is evaluated at each of the
-# elements of x.
-# 
-# SEE ALSO: polyvalm, poly, roots, conv, deconv, residue, filter,
-#           polyderiv, polyinteg
+  ## usage: polyval (c, x)
+  ##
+  ## Evaluate a polynomial.
+  ## 
+  ## In octave, a polynomial is represented by it's coefficients (arranged
+  ## in descending order). For example a vector c of length n+1 corresponds
+  ## to the following nth order polynomial
+  ## 
+  ##   p(x) = c(1) x^n + ... + c(n) x + c(n+1).
+  ## 
+  ## polyval(c,x) will evaluate the polynomial at the specified value of x.
+  ## 
+  ## If x is a vector or matrix, the polynomial is evaluated at each of the
+  ## elements of x.
+  ## 
+  ## SEE ALSO: polyvalm, poly, roots, conv, deconv, residue, filter,
+  ##           polyderiv, polyinteg
 
-# Written by Tony Richardson (amr@mpl.ucsd.edu) June 1994.
+  ## Written by Tony Richardson (amr@mpl.ucsd.edu) June 1994.
 
   if (nargin != 2)
     usage ("polyval (c, x)");