From 9fac656685ffcfb3ad03cf421fc7e4a08c45ccaf Mon Sep 17 00:00:00 2001
From: Chris Cunningham <fivecs@gmail.com>
Date: Mon, 28 Jul 2014 16:25:06 -0400
Subject: [PATCH] Fix abs to Math.abs

Question 2 was not working.
---
 unit1.tex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/unit1.tex b/unit1.tex
index 92a6a38..14eb6c7 100644
--- a/unit1.tex
+++ b/unit1.tex
@@ -46,7 +46,7 @@
       feedback( 'The only variable you should use is $x$.' );
     }
 
-    if (abs(f.evaluate( {x:2} ) - 4.0) < 0.0001)
+    if (Math.abs(f.evaluate( {x:2} ) - 4.0) < 0.0001)
       return 1;
 
     feedback( 'Check what happens when you plug in $x=2$.' );