From 2968183121f2688de85da0803f2c61786ab76286 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=89milie=20Feral?= <emilie.feral@numworks.com>
Date: Wed, 26 Apr 2017 14:35:44 +0200
Subject: [PATCH] [poincare] Fix bug in binomial coefficient

Change-Id: I566288b7099703cfd2919d3416d8db0cb3c6b627
---
 poincare/src/binomial_coefficient.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/poincare/src/binomial_coefficient.cpp b/poincare/src/binomial_coefficient.cpp
index 76f4cac61..8b3380f34 100644
--- a/poincare/src/binomial_coefficient.cpp
+++ b/poincare/src/binomial_coefficient.cpp
@@ -32,7 +32,7 @@ float BinomialCoefficient::privateApproximate(Context& context, AngleUnit angleU
   assert(angleUnit != AngleUnit::Default);
   float n = m_args[0]->approximate(context, angleUnit);
   float k = m_args[1]->approximate(context, angleUnit);
-  if (isnan(n) || isnan(k) || n != (int)n || k != (int)k || k > n) {
+  if (isnan(n) || isnan(k) || n != (int)n || k != (int)k || k > n || k < 0.0f || n < 0.0f) {
     return NAN;
   }
   float result = 1.0f;