From 57bc2355aa3f9df8f6512dec2f82415194453c1f Mon Sep 17 00:00:00 2001
From: Lafrite <lafrite@poneyworld.net>
Date: Fri, 22 May 2015 15:44:43 +0200
Subject: [PATCH] add $$ around root in tbl_sgn_header

---
 pymath/polynomDeg2.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pymath/polynomDeg2.py b/pymath/polynomDeg2.py
index 1f76e1d..ac223be 100644
--- a/pymath/polynomDeg2.py
+++ b/pymath/polynomDeg2.py
@@ -156,9 +156,9 @@ class Polynom_deg2(Polynom):
     def tbl_sgn_header(self):
         """ Return header of the sign line for tkzTabLine"""
         if self.delta > 0:
-            return  "{$-\\infty$, " + str(min(self.roots())) + " , " + str( max(self.roots())) + " , $+\\infty$}"
+            return  "{$-\\infty$, $" + str(min(self.roots())) + "$ , $" + str( max(self.roots())) + "$ , $+\\infty$}"
         elif self.delta == 0:
-            return  "{$-\\infty$, " +  str(self.roots()[0])  + " , $+\\infty$}"
+            return  "{$-\\infty$, $" +  str(self.roots()[0])  + "$ , $+\\infty$}"
         else:
             return  "{$-\\infty$, $+\\infty$}"