From c3867503e73e5c3fee7ab93e3c2c562eb2be8178 Mon Sep 17 00:00:00 2001
From: Dan Kortschak <dan@kortschak.io>
Date: Thu, 20 Feb 2020 22:20:13 +1030
Subject: [PATCH] optimize: relax gradient tolerance for Newton test

---
 optimize/unconstrained_test.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/optimize/unconstrained_test.go b/optimize/unconstrained_test.go
index f4b8250c..e3eb8e81 100644
--- a/optimize/unconstrained_test.go
+++ b/optimize/unconstrained_test.go
@@ -938,7 +938,8 @@ var newtonTests = []unconstrainedTest{
 			Grad: functions.BrownBadlyScaled{}.Grad,
 			Hess: functions.BrownBadlyScaled{}.Hess,
 		},
-		x: []float64{1, 1},
+		x:       []float64{1, 1},
+		gradTol: 1e-9,
 	},
 	{
 		name: "PowellBadlyScaled",