--- a/scripts/polynomial/polyval.m
+++ b/scripts/polynomial/polyval.m
@@ -19,14 +19,14 @@
 ## -*- texinfo -*-
 ## @deftypefn  {Function File} {@var{y} =} polyval (@var{p}, @var{x})
 ## @deftypefnx {Function File} {@var{y} =} polyval (@var{p}, @var{x}, [], @var{mu})
-## Evaluate the polynomial @var{p} at the specified values of @var{x}.  When 
-## @var{mu} is present evaluate the polynomial for 
+## Evaluate the polynomial @var{p} at the specified values of @var{x}.  When
+## @var{mu} is present evaluate the polynomial for
 ## (@var{x}-@var{mu}(1))/@var{mu}(2).
 ## If @var{x} is a vector or matrix, the polynomial is evaluated for each of
 ## the elements of @var{x}.
 ## @deftypefnx {Function File} {[@var{y}, @var{dy}] =} polyval (@var{p}, @var{x}, @var{s})
 ## @deftypefnx {Function File} {[@var{y}, @var{dy}] =} polyval (@var{p}, @var{x}, @var{s}, @var{mu})
-## In addition to evaluating the polynomial, the second output 
+## In addition to evaluating the polynomial, the second output
 ## represents the prediction interval, @var{y} +/- @var{dy}, which
 ## contains at least 50% of the future predictions.  To calculate the
 ## prediction interval, the structured variable @var{s}, originating