Check for existence of the include path before including it in divided_difference.m.

[octave.git] / divided_difference.m

diff --git a/divided_difference.m b/divided_difference.m
index 785b66f27e812ff0d908bdbf317b05077e15d694..cd4b0181b10ed4eb7c460798a9a55c711ee813ab 100644 (file)
--- a/divided_difference.m
+++ b/divided_difference.m
@@ -16,7 +16,10 @@ function dd = divided_difference(f, xs)
   ##
   ##   * ``dd`` - The divided difference f[xs(1), xs(2),...]
   ##
-  addpath('../homework1/src');
+  if (exist('../homework1/src', 'dir'))
+    addpath('../homework1/src');
+  end
+
   order = length(xs) - 1;
   
   if (order < 0)