X-Git-Url: http://gitweb.michael.orlitzky.com/?p=octave.git;a=blobdiff_plain;f=divided_difference.m;h=cd4b0181b10ed4eb7c460798a9a55c711ee813ab;hp=a9039b10c042caa773c4b162f0d6ee94e95734fe;hb=6f4b337984a4abff81123a14496a59f9f4a0351d;hpb=c2dbf1f8827b39b5f5916675f7d319ec1e728e96

diff --git a/divided_difference.m b/divided_difference.m
index a9039b1..cd4b018 100644
--- a/divided_difference.m
+++ b/divided_difference.m
@@ -15,7 +15,11 @@ function dd = divided_difference(f, xs)
   ## OUTPUTS:
   ##
   ##   * ``dd`` - The divided difference f[xs(1), xs(2),...]
-  ## 
+  ##
+  if (exist('../homework1/src', 'dir'))
+    addpath('../homework1/src');
+  end
+
   order = length(xs) - 1;
   
   if (order < 0)
@@ -23,10 +27,10 @@ function dd = divided_difference(f, xs)
     dd = NA;
   elseif (order == 0)
     ## Our base case.
-    dd = f(xs(1))
+    dd = f(xs(1));
   else
     ## Order >= 1.
-    cs = divided_difference_coefficients(xs)
+    cs = divided_difference_coefficients(xs);
     dd = dot(cs, f(xs));
   end
 end