From a81534f4db319cb184ffa2d0d2f4495060d19da0 Mon Sep 17 00:00:00 2001
From: Vinzent Steinberg <Vinzent.Steinberg@gmail.com>
Date: Fri, 2 Jun 2017 13:32:18 +0200
Subject: [PATCH] Cholesky: Fix misleading error message

The diagonals of the *demoposed* matrix were negative, which means the original matrix was not positive definite (even the the diagonal was positive).
---
 src/matrix/decomposition/cholesky.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/matrix/decomposition/cholesky.rs b/src/matrix/decomposition/cholesky.rs
index 4d87990..e99c5a8 100644
--- a/src/matrix/decomposition/cholesky.rs
+++ b/src/matrix/decomposition/cholesky.rs
@@ -154,7 +154,7 @@ impl<T> Cholesky<T> where T: 'static + Float {
                     "Matrix is singular to working precision."));
             } else if diagonal < T::zero() {
                 return Err(Error::new(ErrorKind::DecompFailure,
-                    "Diagonal entries of matrix are not all positive."));
+                    "Matrix is not positive definite."));
             }
 
             let divisor = diagonal.sqrt();