From ff95e2a9d89bcedfe9e2de6ed0fbfda13116eda1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Crozet?= <developer@crozet.re>
Date: Sun, 17 Aug 2014 22:42:16 +0200
Subject: [PATCH] Remove the shifting from the qr algorithm.

---
 src/linalg/decompositions.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/linalg/decompositions.rs b/src/linalg/decompositions.rs
index 650718eb..16a3ecec 100644
--- a/src/linalg/decompositions.rs
+++ b/src/linalg/decompositions.rs
@@ -123,9 +123,9 @@ pub fn eigen_qr<N:  Float,
             unsafe { shifter.unsafe_set((i, i), shift.clone()) }
         }
 
-        let (q, r) = qr(&(eigenvalues - shifter));
+        let (q, r) = qr(&eigenvalues);//  - shifter));
 
-        eigenvalues = r * q + shifter;
+        eigenvalues = r * q /*+ shifter*/;
         eigenvectors = eigenvectors * q;
     }