From d4f9559d79a84d55516bffca073eab302855a946 Mon Sep 17 00:00:00 2001
From: Michael Orlitzky <michael@orlitzky.com>
Date: Thu, 18 Oct 2012 11:20:02 -0400
Subject: [PATCH 1/1] Use the 2-norm instead of the infty-norm for the fixed
 point error ratios.

---
 src/Roots/Simple.hs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Roots/Simple.hs b/src/Roots/Simple.hs
index 3237d60..f9b36fa 100644
--- a/src/Roots/Simple.hs
+++ b/src/Roots/Simple.hs
@@ -260,6 +260,6 @@ fixed_point_error_ratios f x0 x_star p =
   zipWith (/) en_plus_one en_exp
   where
     xn = F.fixed_point_iterations f x0
-    en = map (\x -> norm (x_star - x)) xn
+    en = map (\x -> norm_2 (x_star - x)) xn
     en_plus_one = tail en
     en_exp = map (^p) en
-- 
2.43.2