From 4e8e2ab17cd5b60f2d98976b833a6efc1207b4a9 Mon Sep 17 00:00:00 2001
From: stevenj <stevenj@alum.mit.edu>
Date: Thu, 13 Sep 2007 16:16:34 -0400
Subject: [PATCH] fixed rosenbrock gradient

darcs-hash:20070913201634-c8de0-c097883008bbd14326621dc815e9f2202a07db5f.gz
---
 test/testfuncs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/testfuncs.c b/test/testfuncs.c
index 3865e20..09f7d55 100644
--- a/test/testfuncs.c
+++ b/test/testfuncs.c
@@ -36,7 +36,7 @@ static double rosenbrock_f(int n, const double *x, double *grad, void *data)
      UNUSED(data);
      if (grad) {
 	  grad[0] = -400 * a * x[0] - 2*b;
-	  grad[1] = -200 * a;
+	  grad[1] = 200 * a;
      }
      RETURN(100 * sqr(a) + sqr(b));
 }
-- 
2.30.2