From c8d96011da2456e5ade6e7f35f07b8fb9f4ac151 Mon Sep 17 00:00:00 2001
From: ScottPJones <scottjones@alum.mit.edu>
Date: Sun, 20 Mar 2016 11:21:11 -0400
Subject: [PATCH] Fix #30 Overwritten abs2

---
 src/dual_n.jl | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/dual_n.jl b/src/dual_n.jl
index cf3f712..7d695c3 100644
--- a/src/dual_n.jl
+++ b/src/dual_n.jl
@@ -150,6 +150,7 @@ end
 
 for (funsym, exp) in Calculus.symbolic_derivatives_1arg()
     funsym == :exp && continue
+    funsym == :abs2 && continue
     @eval function $(funsym)(z::Dual4)
         x = real(z)
         df = $exp