From 9a30ace4a58f740fea9a58cca9bd13721070757a Mon Sep 17 00:00:00 2001
From: Matthew Butterick <mb@mbtype.com>
Date: Fri, 28 Feb 2014 21:25:14 -0800
Subject: [PATCH] update

---
 math.rkt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/math.rkt b/math.rkt
index 4e7d003..727bfbc 100644
--- a/math.rkt
+++ b/math.rkt
@@ -1,5 +1,5 @@
 #lang racket/base
-(require "core.rkt" racket/match)
+(require "core.rkt" racket/match racket/contract racket/string racket/list sugar/container sugar/coerce)
 
 (define/contract (css-unit? x)
   (any/c . -> . boolean?)