From: Michael Orlitzky <michael@orlitzky.com>
Date: Wed, 19 Feb 2014 00:53:35 +0000 (-0500)
Subject: Fix the type of zip2 to be more general.
X-Git-Url: https://gitweb.michael.orlitzky.com/?a=commitdiff_plain;h=ca021dad591f47dbe1581c19c4ae4bf1fee821b9;p=numerical-analysis.git

Fix the type of zip2 to be more general.
---

diff --git a/src/Linear/Matrix.hs b/src/Linear/Matrix.hs
index cefad60..8266557 100644
--- a/src/Linear/Matrix.hs
+++ b/src/Linear/Matrix.hs
@@ -856,7 +856,7 @@ trace matrix =
 --   >>> zip2 m1 m2
 --   (((1,1),(2,1)),((3,1),(4,1)))
 --
-zip2 :: (Arity m, Arity n) => Mat m n a -> Mat m n a -> Mat m n (a,a)
+zip2 :: (Arity m, Arity n) => Mat m n a -> Mat m n b -> Mat m n (a,b)
 zip2 m1 m2 =
   construct lambda
   where