From aea1e73cdede14a579670a59859d7f2654824e8b Mon Sep 17 00:00:00 2001
From: Mike J Innes <mike.j.innes@gmail.com>
Date: Thu, 21 Jun 2018 13:12:42 +0100
Subject: [PATCH] scalar gradients

---
 src/tracker/numeric.jl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/tracker/numeric.jl b/src/tracker/numeric.jl
index 272f9ba4..755e1f7d 100644
--- a/src/tracker/numeric.jl
+++ b/src/tracker/numeric.jl
@@ -1,4 +1,4 @@
-function gradient(f, xs::AbstractArray...)
+function gradient(f, xs...)
   xs = param.(xs)
   back!(f(xs...))
   grad.(xs)